Sources for Mishnayos Related to Korban Pesach

This source sheet compliments the Korban Pesach portion of the source sheet entitled: Selection of Mishnayos Relating to Korban Pesach, Seder Night and Korban HaOmer with Running Commentary which can be found at http://www.sefaria.org/sheets/60090. It provides the basic biblical sources for the Mitzvah of the Korban Pesach.

This first source is the original Biblical injunction to sacrifice the Korban Pesach in Egypt on the eve of the Exodus.

שמות י״ב:א׳-כ״ח

(א) וַיֹּ֤אמֶר יי אֶל־מֹשֶׁ֣ה וְאֶֽל־אַהֲרֹ֔ן בְּאֶ֥רֶץ מִצְרַ֖יִם לֵאמֹֽר׃ (ב) הַחֹ֧דֶשׁ הַזֶּ֛ה לָכֶ֖ם רֹ֣אשׁ חֳדָשִׁ֑ים רִאשׁ֥וֹן הוּא֙ לָכֶ֔ם לְחָדְשֵׁ֖י הַשָּׁנָֽה׃ (ג) דַּבְּר֗וּ אֶֽל־כָּל־עֲדַ֤ת יִשְׂרָאֵל֙ לֵאמֹ֔ר בֶּעָשֹׂ֖ר לַחֹ֣דֶשׁ הַזֶּ֑ה וְיִקְח֣וּ לָהֶ֗ם אִ֛ישׁ שֶׂ֥ה לְבֵית־אָבֹ֖ת שֶׂ֥ה לַבָּֽיִת׃ (ד) וְאִם־יִמְעַ֣ט הַבַּיִת֮ מִהְיֹ֣ת מִשֶּׂה֒ וְלָקַ֣ח ה֗וּא וּשְׁכֵנ֛וֹ הַקָּרֹ֥ב אֶל־בֵּית֖וֹ בְּמִכְסַ֣ת נְפָשֹׁ֑ת אִ֚ישׁ לְפִ֣י אָכְל֔וֹ תָּכֹ֖סּוּ עַל־הַשֶּֽׂה׃ (ה) שֶׂ֥ה תָמִ֛ים זָכָ֥ר בֶּן־שָׁנָ֖ה יִהְיֶ֣ה לָכֶ֑ם מִן־הַכְּבָשִׂ֥ים וּמִן־הָעִזִּ֖ים תִּקָּֽחוּ׃ (ו) וְהָיָ֤ה לָכֶם֙ לְמִשְׁמֶ֔רֶת עַ֣ד אַרְבָּעָ֥ה עָשָׂ֛ר י֖וֹם לַחֹ֣דֶשׁ הַזֶּ֑ה וְשָׁחֲט֣וּ אֹת֗וֹ כֹּ֛ל קְהַ֥ל עֲדַֽת־יִשְׂרָאֵ֖ל בֵּ֥ין הָעַרְבָּֽיִם׃ (ז) וְלָֽקְחוּ֙ מִן־הַדָּ֔ם וְנָֽתְנ֛וּ עַל־שְׁתֵּ֥י הַמְּזוּזֹ֖ת וְעַל־הַמַּשְׁק֑וֹף עַ֚ל הַבָּ֣תִּ֔ים אֲשֶׁר־יֹאכְל֥וּ אֹת֖וֹ בָּהֶֽם׃ (ח) וְאָכְל֥וּ אֶת־הַבָּשָׂ֖ר בַּלַּ֣יְלָה הַזֶּ֑ה צְלִי־אֵ֣שׁ וּמַצּ֔וֹת עַל־מְרֹרִ֖ים יֹאכְלֻֽהוּ׃ (ט) אַל־תֹּאכְל֤וּ מִמֶּ֙נּוּ֙ נָ֔א וּבָשֵׁ֥ל מְבֻשָּׁ֖ל בַּמָּ֑יִם כִּ֣י אִם־צְלִי־אֵ֔שׁ רֹאשׁ֥וֹ עַל־כְּרָעָ֖יו וְעַל־קִרְבּֽוֹ׃ (י) וְלֹא־תוֹתִ֥ירוּ מִמֶּ֖נּוּ עַד־בֹּ֑קֶר וְהַנֹּתָ֥ר מִמֶּ֛נּוּ עַד־בֹּ֖קֶר בָּאֵ֥שׁ תִּשְׂרֹֽפוּ׃ (יא) וְכָכָה֮ תֹּאכְל֣וּ אֹתוֹ֒ מָתְנֵיכֶ֣ם חֲגֻרִ֔ים נַֽעֲלֵיכֶם֙ בְּרַגְלֵיכֶ֔ם וּמַקֶּלְכֶ֖ם בְּיֶדְכֶ֑ם וַאֲכַלְתֶּ֤ם אֹתוֹ֙ בְּחִפָּז֔וֹן פֶּ֥סַח ה֖וּא לַיי (יב) וְעָבַרְתִּ֣י בְאֶֽרֶץ־מִצְרַיִם֮ בַּלַּ֣יְלָה הַזֶּה֒ וְהִכֵּיתִ֤י כָל־בְּכוֹר֙ בְּאֶ֣רֶץ מִצְרַ֔יִם מֵאָדָ֖ם וְעַד־בְּהֵמָ֑ה וּבְכָל־אֱלֹקֵ֥י מִצְרַ֛יִם אֶֽעֱשֶׂ֥ה שְׁפָטִ֖ים אֲנִ֥י יי (יג) וְהָיָה֩ הַדָּ֨ם לָכֶ֜ם לְאֹ֗ת עַ֤ל הַבָּתִּים֙ אֲשֶׁ֣ר אַתֶּ֣ם שָׁ֔ם וְרָאִ֙יתִי֙ אֶת־הַדָּ֔ם וּפָסַחְתִּ֖י עֲלֵכֶ֑ם וְלֹֽא־יִֽהְיֶ֨ה בָכֶ֥ם נֶ֙גֶף֙ לְמַשְׁחִ֔ית בְּהַכֹּתִ֖י בְּאֶ֥רֶץ מִצְרָֽיִם׃ (יד) וְהָיָה֩ הַיּ֨וֹם הַזֶּ֤ה לָכֶם֙ לְזִכָּר֔וֹן וְחַגֹּתֶ֥ם אֹת֖וֹ חַ֣ג לַֽיי לְדֹרֹ֣תֵיכֶ֔ם חֻקַּ֥ת עוֹלָ֖ם תְּחָגֻּֽהוּ׃ (טו) שִׁבְעַ֤ת יָמִים֙ מַצּ֣וֹת תֹּאכֵ֔לוּ אַ֚ךְ בַּיּ֣וֹם הָרִאשׁ֔וֹן תַּשְׁבִּ֥יתוּ שְּׂאֹ֖ר מִבָּתֵּיכֶ֑ם כִּ֣י ׀ כָּל־אֹכֵ֣ל חָמֵ֗ץ וְנִכְרְתָ֞ה הַנֶּ֤פֶשׁ הַהִוא֙ מִיִּשְׂרָאֵ֔ל מִיּ֥וֹם הָרִאשֹׁ֖ן עַד־י֥וֹם הַשְּׁבִעִֽי׃ (טז) וּבַיּ֤וֹם הָרִאשׁוֹן֙ מִקְרָא־קֹ֔דֶשׁ וּבַיּוֹם֙ הַשְּׁבִיעִ֔י מִקְרָא־קֹ֖דֶשׁ יִהְיֶ֣ה לָכֶ֑ם כָּל־מְלָאכָה֙ לֹא־יֵעָשֶׂ֣ה בָהֶ֔ם אַ֚ךְ אֲשֶׁ֣ר יֵאָכֵ֣ל לְכָל־נֶ֔פֶשׁ ה֥וּא לְבַדּ֖וֹ יֵעָשֶׂ֥ה לָכֶֽם׃ (יז) וּשְׁמַרְתֶּם֮ אֶת־הַמַּצּוֹת֒ כִּ֗י בְּעֶ֙צֶם֙ הַיּ֣וֹם הַזֶּ֔ה הוֹצֵ֥אתִי אֶת־צִבְאוֹתֵיכֶ֖ם מֵאֶ֣רֶץ מִצְרָ֑יִם וּשְׁמַרְתֶּ֞ם אֶת־הַיּ֥וֹם הַזֶּ֛ה לְדֹרֹתֵיכֶ֖ם חֻקַּ֥ת עוֹלָֽם׃ (יח) בָּרִאשֹׁ֡ן בְּאַרְבָּעָה֩ עָשָׂ֨ר י֤וֹם לַחֹ֙דֶשׁ֙ בָּעֶ֔רֶב תֹּאכְל֖וּ מַצֹּ֑ת עַ֠ד י֣וֹם הָאֶחָ֧ד וְעֶשְׂרִ֛ים לַחֹ֖דֶשׁ בָּעָֽרֶב׃ (יט) שִׁבְעַ֣ת יָמִ֔ים שְׂאֹ֕ר לֹ֥א יִמָּצֵ֖א בְּבָתֵּיכֶ֑ם כִּ֣י ׀ כָּל־אֹכֵ֣ל מַחְמֶ֗צֶת וְנִכְרְתָ֞ה הַנֶּ֤פֶשׁ הַהִוא֙ מֵעֲדַ֣ת יִשְׂרָאֵ֔ל בַּגֵּ֖ר וּבְאֶזְרַ֥ח הָאָֽרֶץ׃ (כ) כָּל־מַחְמֶ֖צֶת לֹ֣א תֹאכֵ֑לוּ בְּכֹל֙ מוֹשְׁבֹ֣תֵיכֶ֔ם תֹּאכְל֖וּ מַצּֽוֹת׃ (פ) (כא) וַיִּקְרָ֥א מֹשֶׁ֛ה לְכָל־זִקְנֵ֥י יִשְׂרָאֵ֖ל וַיֹּ֣אמֶר אֲלֵקֶ֑ם מִֽשְׁכ֗וּ וּקְח֨וּ לָכֶ֥ם צֹ֛אן לְמִשְׁפְּחֹתֵיכֶ֖ם וְשַׁחֲט֥וּ הַפָּֽסַח׃ (כב) וּלְקַחְתֶּ֞ם אֲגֻדַּ֣ת אֵז֗וֹב וּטְבַלְתֶּם֮ בַּדָּ֣ם אֲשֶׁר־בַּסַּף֒ וְהִגַּעְתֶּ֤ם אֶל־הַמַּשְׁקוֹף֙ וְאֶל־שְׁתֵּ֣י הַמְּזוּזֹ֔ת מִן־הַדָּ֖ם אֲשֶׁ֣ר בַּסָּ֑ף וְאַתֶּ֗ם לֹ֥א תֵצְא֛וּ אִ֥ישׁ מִפֶּֽתַח־בֵּית֖וֹ עַד־בֹּֽקֶר׃ (כג) וְעָבַ֣ר יי לִנְגֹּ֣ף אֶת־מִצְרַיִם֒ וְרָאָ֤ה אֶת־הַדָּם֙ עַל־הַמַּשְׁק֔וֹף וְעַ֖ל שְׁתֵּ֣י הַמְּזוּזֹ֑ת וּפָסַ֤ח יי עַל־הַפֶּ֔תַח וְלֹ֤א יִתֵּן֙ הַמַּשְׁחִ֔ית לָבֹ֥א אֶל־בָּתֵּיכֶ֖ם לִנְגֹּֽף׃ (כד) וּשְׁמַרְתֶּ֖ם אֶת־הַדָּבָ֣ר הַזֶּ֑ה לְחָק־לְךָ֥ וּלְבָנֶ֖יךָ עַד־עוֹלָֽם׃ (כה) וְהָיָ֞ה כִּֽי־תָבֹ֣אוּ אֶל־הָאָ֗רֶץ אֲשֶׁ֨ר יִתֵּ֧ן יי לָכֶ֖ם כַּאֲשֶׁ֣ר דִּבֵּ֑ר וּשְׁמַרְתֶּ֖ם אֶת־הָעֲבֹדָ֥ה הַזֹּֽאת׃ (כו) וְהָיָ֕ה כִּֽי־יֹאמְר֥וּ אֲלֵיכֶ֖ם בְּנֵיכֶ֑ם מָ֛ה הָעֲבֹדָ֥ה הַזֹּ֖את לָכֶֽם׃ (כז) וַאֲמַרְתֶּ֡ם זֶֽבַח־פֶּ֨סַח ה֜וּא לַֽיי אֲשֶׁ֣ר פָּ֠סַח עַל־בָּתֵּ֤י בְנֵֽי־יִשְׂרָאֵל֙ בְּמִצְרַ֔יִם בְּנָגְפּ֥וֹ אֶת־מִצְרַ֖יִם וְאֶת־בָּתֵּ֣ינוּ הִצִּ֑יל וַיִּקֹּ֥ד הָעָ֖ם וַיִּֽשְׁתַּחֲוּֽוּ׃ (כח) וַיֵּלְכ֥וּ וַיַּֽעֲשׂ֖וּ בְּנֵ֣י יִשְׂרָאֵ֑ל כַּאֲשֶׁ֨ר צִוָּ֧ה יי אֶת־מֹשֶׁ֥ה וְאַהֲרֹ֖ן כֵּ֥ן עָשֽׂוּ׃ (ס)

Exodus 12:1-28

(1) The LORD said to Moses and Aaron in the land of Egypt: (2) This month shall mark for you the beginning of the months; it shall be the first of the months of the year for you. (3) Speak to the whole community of Israel and say that on the tenth of this month each of them shall take a lamb to a family, a lamb to a household. (4) But if the household is too small for a lamb, let him share one with a neighbor who dwells nearby, in proportion to the number of persons: you shall contribute for the lamb according to what each household will eat. (5) Your lamb shall be without blemish, a yearling male; you may take it from the sheep or from the goats. (6) You shall keep watch over it until the fourteenth day of this month; and all the assembled congregation of the Israelites shall slaughter it at twilight. (7) They shall take some of the blood and put it on the two doorposts and the lintel of the houses in which they are to eat it. (8) They shall eat the flesh that same night; they shall eat it roasted over the fire, with unleavened bread and with bitter herbs. (9) Do not eat any of it raw, or cooked in any way with water, but roasted—head, legs, and entrails—over the fire. (10) You shall not leave any of it over until morning; if any of it is left until morning, you shall burn it. (11) This is how you shall eat it: your loins girded, your sandals on your feet, and your staff in your hand; and you shall eat it hurriedly: it is a passover offering to the LORD. (12) For that night I will go through the land of Egypt and strike down every first-born in the land of Egypt, both man and beast; and I will mete out punishments to all the gods of Egypt, I the LORD. (13) And the blood on the houses where you are staying shall be a sign for you: when I see the blood I will pass over you, so that no plague will destroy you when I strike the land of Egypt. (14) This day shall be to you one of remembrance: you shall celebrate it as a festival to the LORD throughout the ages; you shall celebrate it as an institution for all time. (15) Seven days you shall eat unleavened bread; on the very first day you shall remove leaven from your houses, for whoever eats leavened bread from the first day to the seventh day, that person shall be cut off from Israel. (16) You shall celebrate a sacred occasion on the first day, and a sacred occasion on the seventh day; no work at all shall be done on them; only what every person is to eat, that alone may be prepared for you. (17) You shall observe the [Feast of] Unleavened Bread, for on this very day I brought your ranks out of the land of Egypt; you shall observe this day throughout the ages as an institution for all time. (18) In the first month, from the fourteenth day of the month at evening, you shall eat unleavened bread until the twenty-first day of the month at evening. (19) No leaven shall be found in your houses for seven days. For whoever eats what is leavened, that person shall be cut off from the community of Israel, whether he is a stranger or a citizen of the country. (20) You shall eat nothing leavened; in all your settlements you shall eat unleavened bread. (21) Moses then summoned all the elders of Israel and said to them, “Go, pick out lambs for your families, and slaughter the passover offering. (22) Take a bunch of hyssop, dip it in the blood that is in the basin, and apply some of the blood that is in the basin to the lintel and to the two doorposts. None of you shall go outside the door of his house until morning. (23) For when the LORD goes through to smite the Egyptians, He will see the blood on the lintel and the two doorposts, and the LORD will pass over the door and not let the Destroyer enter and smite your home. (24) “You shall observe this as an institution for all time, for you and for your descendants. (25) And when you enter the land that the LORD will give you, as He has promised, you shall observe this rite. (26) And when your children ask you, ‘What do you mean by this rite?’ (27) you shall say, ‘It is the passover sacrifice to the LORD, because He passed over the houses of the Israelites in Egypt when He smote the Egyptians, but saved our houses.’” The people then bowed low in homage. (28) And the Israelites went and did so; just as the LORD had commanded Moses and Aaron, so they did.

This source describes the actual Exodus and lists a number of laws related to the Korban Pesach

שמות י״ב:ל״ט-מ״ט

(לט) וַיֹּאפ֨וּ אֶת־הַבָּצֵ֜ק אֲשֶׁ֨ר הוֹצִ֧יאוּ מִמִּצְרַ֛יִם עֻגֹ֥ת מַצּ֖וֹת כִּ֣י לֹ֣א חָמֵ֑ץ כִּֽי־גֹרְשׁ֣וּ מִמִּצְרַ֗יִם וְלֹ֤א יָֽכְלוּ֙ לְהִתְמַהְמֵ֔הַּ וְגַם־צֵדָ֖ה לֹא־עָשׂ֥וּ לָהֶֽם׃ (מ) וּמוֹשַׁב֙ בְּנֵ֣י יִשְׂרָאֵ֔ל אֲשֶׁ֥ר יָשְׁב֖וּ בְּמִצְרָ֑יִם שְׁלֹשִׁ֣ים שָׁנָ֔ה וְאַרְבַּ֥ע מֵא֖וֹת שָׁנָֽה׃ (מא) וַיְהִ֗י מִקֵּץ֙ שְׁלֹשִׁ֣ים שָׁנָ֔ה וְאַרְבַּ֥ע מֵא֖וֹת שָׁנָ֑ה וַיְהִ֗י בְּעֶ֙צֶם֙ הַיּ֣וֹם הַזֶּ֔ה יָֽצְא֛וּ כָּל־צִבְא֥וֹת יי מֵאֶ֥רֶץ מִצְרָֽיִם׃ (מב) לֵ֣יל שִׁמֻּרִ֥ים הוּא֙ לַֽיי לְהוֹצִיאָ֖ם מֵאֶ֣רֶץ מִצְרָ֑יִם הֽוּא־הַלַּ֤יְלָה הַזֶּה֙ לַֽיי שִׁמֻּרִ֛ים לְכָל־בְּנֵ֥י יִשְׂרָאֵ֖ל לְדֹרֹתָֽם׃ (פ) (מג) וַיֹּ֤אמֶר יי אֶל־מֹשֶׁ֣ה וְאַהֲרֹ֔ן זֹ֖את חֻקַּ֣ת הַפָּ֑סַח כָּל־בֶּן־נֵכָ֖ר לֹא־יֹ֥אכַל בּֽוֹ׃ (מד) וְכָל־עֶ֥בֶד אִ֖ישׁ מִקְנַת־כָּ֑סֶף וּמַלְתָּ֣ה אֹת֔וֹ אָ֖ז יֹ֥אכַל בּֽוֹ׃ (מה) תּוֹשָׁ֥ב וְשָׂכִ֖יר לֹא־יֹ֥אכַל־בּֽוֹ׃ (מו) בְּבַ֤יִת אֶחָד֙ יֵאָכֵ֔ל לֹא־תוֹצִ֧יא מִן־הַבַּ֛יִת מִן־הַבָּשָׂ֖ר ח֑וּצָה וְעֶ֖צֶם לֹ֥א תִשְׁבְּרוּ־בֽוֹ׃ (מז) כָּל־עֲדַ֥ת יִשְׂרָאֵ֖ל יַעֲשׂ֥וּ אֹתֽוֹ׃ (מח) וְכִֽי־יָג֨וּר אִתְּךָ֜ גֵּ֗ר וְעָ֣שָׂה פֶסַח֮ לַיי הִמּ֧וֹל ל֣וֹ כָל־זָכָ֗ר וְאָז֙ יִקְרַ֣ב לַעֲשֹׂת֔וֹ וְהָיָ֖ה כְּאֶזְרַ֣ח הָאָ֑רֶץ וְכָל־עָרֵ֖ל לֹֽא־יֹ֥אכַל בּֽוֹ׃ (מט) תּוֹרָ֣ה אַחַ֔ת יִהְיֶ֖ה לָֽאֶזְרָ֑ח וְלַגֵּ֖ר הַגָּ֥ר בְּתוֹכְכֶֽם׃

Exodus 12:39-49

(39) And they baked unleavened cakes of the dough that they had taken out of Egypt, for it was not leavened, since they had been driven out of Egypt and could not delay; nor had they prepared any provisions for themselves. (40) The length of time that the Israelites lived in Egypt was four hundred and thirty years; (41) at the end of the four hundred and thirtieth year, to the very day, all the ranks of the LORD departed from the land of Egypt. (42) That was for the LORD a night of vigil to bring them out of the land of Egypt; that same night is the LORD’s, one of vigil for all the children of Israel throughout the ages. (43) The LORD said to Moses and Aaron: This is the law of the passover offering: No foreigner shall eat of it. (44) But any slave a man has bought may eat of it once he has been circumcised. (45) No bound or hired laborer shall eat of it. (46) It shall be eaten in one house: you shall not take any of the flesh outside the house; nor shall you break a bone of it. (47) The whole community of Israel shall offer it. (48) If a stranger who dwells with you would offer the passover to the LORD, all his males must be circumcised; then he shall be admitted to offer it; he shall then be as a citizen of the country. But no uncircumcised person may eat of it. (49) There shall be one law for the citizen and for the stranger who dwells among you.

One of the four Parshiyos utilized in our Tefillin, it describes the Exodus and the imperative to celebrate Pesach by eating Matzoh and not eating Chametz. Importantly, it contains the imperative to retell the story of the Exodus to your children.

שמות י״ג:ג׳-י׳

(ג) וַיֹּ֨אמֶר מֹשֶׁ֜ה אֶל־הָעָ֗ם זָכ֞וֹר אֶת־הַיּ֤וֹם הַזֶּה֙ אֲשֶׁ֨ר יְצָאתֶ֤ם מִמִּצְרַ֙יִם֙ מִבֵּ֣ית עֲבָדִ֔ים כִּ֚י בְּחֹ֣זֶק יָ֔ד הוֹצִ֧יא יי אֶתְכֶ֖ם מִזֶּ֑ה וְלֹ֥א יֵאָכֵ֖ל חָמֵֽץ׃ (ד) הַיּ֖וֹם אַתֶּ֣ם יֹצְאִ֑ים בְּחֹ֖דֶשׁ הָאָבִֽיב׃ (ה) וְהָיָ֣ה כִֽי־יְבִֽיאֲךָ֣ יי אֶל־אֶ֣רֶץ הַֽ֠כְּנַעֲנִי וְהַחִתִּ֨י וְהָאֱמֹרִ֜י וְהַחִוִּ֣י וְהַיְבוּסִ֗י אֲשֶׁ֨ר נִשְׁבַּ֤ע לַאֲבֹתֶ֙יךָ֙ לָ֣תֶת לָ֔ךְ אֶ֛רֶץ זָבַ֥ת חָלָ֖ב וּדְבָ֑שׁ וְעָבַדְתָּ֛ אֶת־הָעֲבֹדָ֥ה הַזֹּ֖את בַּחֹ֥דֶשׁ הַזֶּֽה׃ (ו) שִׁבְעַ֥ת יָמִ֖ים תֹּאכַ֣ל מַצֹּ֑ת וּבַיּוֹם֙ הַשְּׁבִיעִ֔י חַ֖ג לַיהוָֽה׃ (ז) מַצּוֹת֙ יֵֽאָכֵ֔ל אֵ֖ת שִׁבְעַ֣ת הַיָּמִ֑ים וְלֹֽא־יֵרָאֶ֨ה לְךָ֜ חָמֵ֗ץ וְלֹֽא־יֵרָאֶ֥ה לְךָ֛ שְׂאֹ֖ר בְּכָל־גְּבֻלֶֽךָ׃ (ח) וְהִגַּדְתָּ֣ לְבִנְךָ֔ בַּיּ֥וֹם הַה֖וּא לֵאמֹ֑ר בַּעֲב֣וּר זֶ֗ה עָשָׂ֤ה יי לִ֔י בְּצֵאתִ֖י מִמִּצְרָֽיִם׃ (ט) וְהָיָה֩ לְךָ֨ לְא֜וֹת עַל־יָדְךָ֗ וּלְזִכָּרוֹן֙ בֵּ֣ין עֵינֶ֔יךָ לְמַ֗עַן תִּהְיֶ֛ה תּוֹרַ֥ת יי בְּפִ֑יךָ כִּ֚י בְּיָ֣ד חֲזָקָ֔ה הוֹצִֽאֲךָ֥ יי מִמִּצְרָֽיִם׃ (י) וְשָׁמַרְתָּ֛ אֶת־הַחֻקָּ֥ה הַזֹּ֖את לְמוֹעֲדָ֑הּ מִיָּמִ֖ים יָמִֽימָה׃ (ס)

Exodus 13:3-10

(3) And Moses said to the people, “Remember this day, on which you went free from Egypt, the house of bondage, how the LORD freed you from it with a mighty hand: no leavened bread shall be eaten. (4) You go free on this day, in the month of Abib. (5) So, when the LORD has brought you into the land of the Canaanites, the Hittites, the Amorites, the Hivites, and the Jebusites, which He swore to your fathers to give you, a land flowing with milk and honey, you shall observe in this month the following practice: (6) “Seven days you shall eat unleavened bread, and on the seventh day there shall be a festival of the LORD. (7) Throughout the seven days unleavened bread shall be eaten; no leavened bread shall be found with you, and no leaven shall be found in all your territory. (8) And you shall explain to your son on that day, ‘It is because of what the LORD did for me when I went free from Egypt.’ (9) “And this shall serve you as a sign on your hand and as a reminder on your forehead—in order that the Teaching of the LORD may be in your mouth—that with a mighty hand the LORD freed you from Egypt. (10) You shall keep this institution at its set time from year to year.

The next two sources, when describing the Three Festivals, each include Chag HaMatzos as a seven-day Holiday to be celebrated in the Spring.

שמות כ״ג:י״ד-ט״ו

(יד) שָׁלֹ֣שׁ רְגָלִ֔ים תָּחֹ֥ג לִ֖י בַּשָּׁנָֽה׃ (טו) אֶת־חַ֣ג הַמַּצּוֹת֮ תִּשְׁמֹר֒ שִׁבְעַ֣ת יָמִים֩ תֹּאכַ֨ל מַצּ֜וֹת כַּֽאֲשֶׁ֣ר צִוִּיתִ֗ךָ לְמוֹעֵד֙ חֹ֣דֶשׁ הָֽאָבִ֔יב כִּי־ב֖וֹ יָצָ֣אתָ מִמִּצְרָ֑יִם וְלֹא־יֵרָא֥וּ פָנַ֖י רֵיקָֽם׃

Exodus 23:14-15

(14) Three times a year you shall hold a festival for Me: (15) You shall observe the Feast of Unleavened Bread—eating unleavened bread for seven days as I have commanded you—at the set time in the month of Abib, for in it you went forth from Egypt; and none shall appear before Me empty-handed;

שמות ל״ד:י״ח

(יח) אֶת־חַ֣ג הַמַּצּוֹת֮ תִּשְׁמֹר֒ שִׁבְעַ֨ת יָמִ֜ים תֹּאכַ֤ל מַצּוֹת֙ אֲשֶׁ֣ר צִוִּיתִ֔ךָ לְמוֹעֵ֖ד חֹ֣דֶשׁ הָאָבִ֑יב כִּ֚י בְּחֹ֣דֶשׁ הָֽאָבִ֔יב יָצָ֖אתָ מִמִּצְרָֽיִם׃

Exodus 34:18

(18) You shall observe the Feast of Unleavened Bread—eating unleavened bread for seven days, as I have commanded you—at the set time of the month of Abib, for in the month of Abib you went forth from Egypt.

This source combines both Chag HaPesach and Chag HaMatzohs into a singular unit.

ויקרא כ״ג:ד׳-ח׳

(ד) אֵ֚לֶּה מוֹעֲדֵ֣י יי מִקְרָאֵ֖י קֹ֑דֶשׁ אֲשֶׁר־תִּקְרְא֥וּ אֹתָ֖ם בְּמוֹעֲדָֽם׃ (ה) בַּחֹ֣דֶשׁ הָרִאשׁ֗וֹן בְּאַרְבָּעָ֥ה עָשָׂ֛ר לַחֹ֖דֶשׁ בֵּ֣ין הָעַרְבָּ֑יִם פֶּ֖סַח לַיהוָֽה׃ (ו) וּבַחֲמִשָּׁ֨ה עָשָׂ֥ר יוֹם֙ לַחֹ֣דֶשׁ הַזֶּ֔ה חַ֥ג הַמַּצּ֖וֹת לַיי שִׁבְעַ֥ת יָמִ֖ים מַצּ֥וֹת תֹּאכֵֽלוּ׃ (ז) בַּיּוֹם֙ הָֽרִאשׁ֔וֹן מִקְרָא־קֹ֖דֶשׁ יִהְיֶ֣ה לָכֶ֑ם כָּל־מְלֶ֥אכֶת עֲבֹדָ֖ה לֹ֥א תַעֲשֽׂוּ׃ (ח) וְהִקְרַבְתֶּ֥ם אִשֶּׁ֛ה לַיי שִׁבְעַ֣ת יָמִ֑ים בַּיּ֤וֹם הַשְּׁבִיעִי֙ מִקְרָא־קֹ֔דֶשׁ כָּל־מְלֶ֥אכֶת עֲבֹדָ֖ה לֹ֥א תַעֲשֽׂוּ׃ (פ)

Leviticus 23:4-8

(4) These are the set times of the LORD, the sacred occasions, which you shall celebrate each at its appointed time: (5) In the first month, on the fourteenth day of the month, at twilight, there shall be a passover offering to the LORD, (6) and on the fifteenth day of that month the LORD’s Feast of Unleavened Bread. You shall eat unleavened bread for seven days. (7) On the first day you shall celebrate a sacred occasion: you shall not work at your occupations. (8) Seven days you shall make offerings by fire to the LORD. The seventh day shall be a sacred occasion: you shall not work at your occupations.

This is the source for the Korban Omer brought on the second day of Pesach. It is from this date that we count the 49 day "Sefirah" period until we reach Shavuous. The proper date on which to bring this Korban was one of the most hotly contested disputes between the Chachomim and Saduccees.

ויקרא כ״ג:ט׳-י״ד

(ט) וַיְדַבֵּ֥ר יי אֶל־מֹשֶׁ֥ה לֵּאמֹֽר׃ (י) דַּבֵּ֞ר אֶל־בְּנֵ֤י יִשְׂרָאֵל֙ וְאָמַרְתָּ֣ אֲלֵקֶ֔ם כִּֽי־תָבֹ֣אוּ אֶל־הָאָ֗רֶץ אֲשֶׁ֤ר אֲנִי֙ נֹתֵ֣ן לָכֶ֔ם וּקְצַרְתֶּ֖ם אֶת־קְצִירָ֑הּ וַהֲבֵאתֶ֥ם אֶת־עֹ֛מֶר רֵאשִׁ֥ית קְצִירְכֶ֖ם אֶל־הַכֹּהֵֽן׃ (יא) וְהֵנִ֧יף אֶת־הָעֹ֛מֶר לִפְנֵ֥י יי לִֽרְצֹנְכֶ֑ם מִֽמָּחֳרַת֙ הַשַּׁבָּ֔ת יְנִיפֶ֖נּוּ הַכֹּהֵֽן׃ (יב) וַעֲשִׂיתֶ֕ם בְּי֥וֹם הֲנִֽיפְכֶ֖ם אֶת־הָעֹ֑מֶר כֶּ֣בֶשׂ תָּמִ֧ים בֶּן־שְׁנָת֛וֹ לְעֹלָ֖ה לַיהוָֽה׃ (יג) וּמִנְחָתוֹ֩ שְׁנֵ֨י עֶשְׂרֹנִ֜ים סֹ֣לֶת בְּלוּלָ֥ה בַשֶּׁ֛מֶן אִשֶּׁ֥ה לַיי רֵ֣יחַ נִיחֹ֑חַ וְנִסְכֹּ֥ה יַ֖יִן רְבִיעִ֥ת הַהִֽין׃ (יד) וְלֶחֶם֩ וְקָלִ֨י וְכַרְמֶ֜ל לֹ֣א תֹֽאכְל֗וּ עַד־עֶ֙צֶם֙ הַיּ֣וֹם הַזֶּ֔ה עַ֚ד הֲבִ֣יאֲכֶ֔ם אֶת־קָרְבַּ֖ן אֱלֹקֵיכֶ֑ם חֻקַּ֤ת עוֹלָם֙ לְדֹרֹ֣תֵיכֶ֔ם בְּכֹ֖ל מֹשְׁבֹֽתֵיכֶֽם׃ (ס)

Leviticus 23:9-14

(9) The LORD spoke to Moses, saying: (10) Speak to the Israelite people and say to them: When you enter the land that I am giving to you and you reap its harvest, you shall bring the first sheaf of your harvest to the priest. (11) He shall elevate the sheaf before the LORD for acceptance in your behalf; the priest shall elevate it on the day after the sabbath. (12) On the day that you elevate the sheaf, you shall offer as a burnt offering to the LORD a lamb of the first year without blemish. (13) The meal offering with it shall be two-tenths of a measure of choice flour with oil mixed in, an offering by fire of pleasing odor to the LORD; and the libation with it shall be of wine, a quarter of a hin. (14) Until that very day, until you have brought the offering of your God, you shall eat no bread or parched grain or fresh ears; it is a law for all time throughout the ages in all your settlements.

Under certain circumstances, if a person missed bringning the Korban Pesach during the month of Nissan, the Torah permitted him to bring the Korban Pesach on the 14th of Iyar.

במדבר ט׳:א׳-י״ד

(א) וַיְדַבֵּ֣ר יי אֶל־מֹשֶׁ֣ה בְמִדְבַּר־סִ֠ינַי בַּשָּׁנָ֨ה הַשֵּׁנִ֜ית לְצֵאתָ֨ם מֵאֶ֧רֶץ מִצְרַ֛יִם בַּחֹ֥דֶשׁ הָרִאשׁ֖וֹן לֵאמֹֽר׃ (ב) וְיַעֲשׂ֧וּ בְנֵי־יִשְׂרָאֵ֛ל אֶת־הַפָּ֖סַח בְּמוֹעֲדֽוֹ׃ (ג) בְּאַרְבָּעָ֣ה עָשָֽׂר־י֠וֹם בַּחֹ֨דֶשׁ הַזֶּ֜ה בֵּ֧ין הָֽעֲרְבַּ֛יִם תַּעֲשׂ֥וּ אֹת֖וֹ בְּמוֹעֲד֑וֹ כְּכָל־חֻקֹּתָ֥יו וּכְכָל־מִשְׁפָּטָ֖יו תַּעֲשׂ֥וּ אֹתֽוֹ׃ (ד) וַיְדַבֵּ֥ר מֹשֶׁ֛ה אֶל־בְּנֵ֥י יִשְׂרָאֵ֖ל לַעֲשֹׂ֥ת הַפָּֽסַח׃ (ה) וַיַּעֲשׂ֣וּ אֶת־הַפֶּ֡סַח בָּרִאשׁ֡וֹן בְּאַרְבָּעָה֩ עָשָׂ֨ר י֥וֹם לַחֹ֛דֶשׁ בֵּ֥ין הָעַרְבַּ֖יִם בְּמִדְבַּ֣ר סִינָ֑י כְּ֠כֹל אֲשֶׁ֨ר צִוָּ֤ה יי אֶת־מֹשֶׁ֔ה כֵּ֥ן עָשׂ֖וּ בְּנֵ֥י יִשְׂרָאֵֽל׃ (ו) וַיְהִ֣י אֲנָשִׁ֗ים אֲשֶׁ֨ר הָי֤וּ טְמֵאִים֙ לְנֶ֣פֶשׁ אָדָ֔ם וְלֹא־יָכְל֥וּ לַעֲשֹׂת־הַפֶּ֖סַח בַּיּ֣וֹם הַה֑וּא וַֽיִּקְרְב֞וּ לִפְנֵ֥י מֹשֶׁ֛ה וְלִפְנֵ֥י אַהֲרֹ֖ן בַּיּ֥וֹם הַהֽוּא׃ (ז) וַ֠יֹּאמְרוּ הָאֲנָשִׁ֤ים הָהֵ֙מָּה֙ אֵלָ֔יו אֲנַ֥חְנוּ טְמֵאִ֖ים לְנֶ֣פֶשׁ אָדָ֑ם לָ֣מָּה נִגָּרַ֗ע לְבִלְתִּ֨י הַקְרִ֜ב אֶת־קָרְבַּ֤ן יי בְּמֹ֣עֲד֔וֹ בְּת֖וֹךְ בְּנֵ֥י יִשְׂרָאֵֽל׃ (ח) וַיֹּ֥אמֶר אֲלֵקֶ֖ם מֹשֶׁ֑ה עִמְד֣וּ וְאֶשְׁמְעָ֔ה מַה־יְצַוֶּ֥ה יי לָכֶֽם׃ (פ) (ט) וַיְדַבֵּ֥ר יי אֶל־מֹשֶׁ֥ה לֵּאמֹֽר׃ (י) דַּבֵּ֛ר אֶל־בְּנֵ֥י יִשְׂרָאֵ֖ל לֵאמֹ֑ר אִ֣ישׁ אִ֣ישׁ כִּי־יִהְיֶֽה־טָמֵ֣א ׀ לָנֶ֡פֶשׁ אוֹ֩ בְדֶ֨רֶךְ רְחֹקָ֜הׄ לָכֶ֗ם א֚וֹ לְדֹרֹ֣תֵיכֶ֔ם וְעָ֥שָׂה פֶ֖סַח לַיהוָֽה׃ (יא) בַּחֹ֨דֶשׁ הַשֵּׁנִ֜י בְּאַרְבָּעָ֨ה עָשָׂ֥ר י֛וֹם בֵּ֥ין הָעַרְבַּ֖יִם יַעֲשׂ֣וּ אֹת֑וֹ עַל־מַצּ֥וֹת וּמְרֹרִ֖ים יֹאכְלֻֽהוּ׃ (יב) לֹֽא־יַשְׁאִ֤ירוּ מִמֶּ֙נּוּ֙ עַד־בֹּ֔קֶר וְעֶ֖צֶם לֹ֣א יִשְׁבְּרוּ־ב֑וֹ כְּכָל־חֻקַּ֥ת הַפֶּ֖סַח יַעֲשׂ֥וּ אֹתֽוֹ׃ (יג) וְהָאִישׁ֩ אֲשֶׁר־ה֨וּא טָה֜וֹר וּבְדֶ֣רֶךְ לֹא־הָיָ֗ה וְחָדַל֙ לַעֲשׂ֣וֹת הַפֶּ֔סַח וְנִכְרְתָ֛ה הַנֶּ֥פֶשׁ הַהִ֖וא מֵֽעַמֶּ֑יהָ כִּ֣י ׀ קָרְבַּ֣ן יי לֹ֤א הִקְרִיב֙ בְּמֹ֣עֲד֔וֹ חֶטְא֥וֹ יִשָּׂ֖א הָאִ֥ישׁ הַהֽוּא׃ (יד) וְכִֽי־יָג֨וּר אִתְּכֶ֜ם גֵּ֗ר וְעָ֤שָֽׂה פֶ֙סַח֙ לַֽיי כְּחֻקַּ֥ת הַפֶּ֛סַח וּכְמִשְׁפָּט֖וֹ כֵּ֣ן יַעֲשֶׂ֑ה חֻקָּ֤ה אַחַת֙ יִהְיֶ֣ה לָכֶ֔ם וְלַגֵּ֖ר וּלְאֶזְרַ֥ח הָאָֽרֶץ׃ (פ)

Numbers 9:1-14

(1) The LORD spoke to Moses in the wilderness of Sinai, on the first new moon of the second year following the exodus from the land of Egypt, saying: (2) Let the Israelite people offer the passover sacrifice at its set time: (3) you shall offer it on the fourteenth day of this month, at twilight, at its set time; you shall offer it in accordance with all its rules and rites. (4) Moses instructed the Israelites to offer the passover sacrifice; (5) and they offered the passover sacrifice in the first month, on the fourteenth day of the month, at twilight, in the wilderness of Sinai. Just as the LORD had commanded Moses, so the Israelites did. (6) But there were some men who were unclean by reason of a corpse and could not offer the passover sacrifice on that day. Appearing that same day before Moses and Aaron, (7) those men said to them, “Unclean though we are by reason of a corpse, why must we be debarred from presenting the LORD’s offering at its set time with the rest of the Israelites?” (8) Moses said to them, “Stand by, and let me hear what instructions the LORD gives about you.” (9) And the LORD spoke to Moses, saying: (10) Speak to the Israelite people, saying: When any of you or of your posterity who are defiled by a corpse or are on a long journey would offer a passover sacrifice to the LORD, (11) they shall offer it in the second month, on the fourteenth day of the month, at twilight. They shall eat it with unleavened bread and bitter herbs, (12) and they shall not leave any of it over until morning. They shall not break a bone of it. They shall offer it in strict accord with the law of the passover sacrifice. (13) But if a man who is clean and not on a journey refrains from offering the passover sacrifice, that person shall be cut off from his kin, for he did not present the LORD’s offering at its set time; that man shall bear his guilt. (14) And when a stranger who resides with you would offer a passover sacrifice to the LORD, he must offer it in accordance with the rules and rites of the passover sacrifice. There shall be one law for you, whether stranger or citizen of the country.

In Devarim, the Torah mandates that the Korban Pesach be brought at the central sanctuary.

דברים ט״ז:א׳-ח׳

(א) שָׁמוֹר֙ אֶת־חֹ֣דֶשׁ הָאָבִ֔יב וְעָשִׂ֣יתָ פֶּ֔סַח לַיי אֱלֹקֶ֑יךָ כִּ֞י בְּחֹ֣דֶשׁ הָֽאָבִ֗יב הוֹצִ֨יאֲךָ֜ יי אֱלֹקֶ֛יךָ מִמִּצְרַ֖יִם לָֽיְלָה׃ (ב) וְזָבַ֥חְתָּ פֶּ֛סַח לַיי אֱלֹקֶ֖יךָ צֹ֣אן וּבָקָ֑ר בַּמָּקוֹם֙ אֲשֶׁר־יִבְחַ֣ר יי לְשַׁכֵּ֥ן שְׁמ֖וֹ שָֽׁם׃ (ג) לֹא־תֹאכַ֤ל עָלָיו֙ חָמֵ֔ץ שִׁבְעַ֥ת יָמִ֛ים תֹּֽאכַל־עָלָ֥יו מַצּ֖וֹת לֶ֣חֶם עֹ֑נִי כִּ֣י בְחִפָּז֗וֹן יָצָ֙אתָ֙ מֵאֶ֣רֶץ מִצְרַ֔יִם לְמַ֣עַן תִּזְכֹּר֔ אֶת־י֤וֹם צֵֽאתְךָ֙ מֵאֶ֣רֶץ מִצְרַ֔יִם כֹּ֖ל יְמֵ֥י חַיֶּֽיךָ׃ (ד) וְלֹֽא־יֵרָאֶ֨ה לְךָ֥ שְׂאֹ֛ר בְּכָל־גְּבֻלְךָ֖ שִׁבְעַ֣ת יָמִ֑ים וְלֹא־יָלִ֣ין מִן־הַבָּשָׂ֗ר אֲשֶׁ֨ר תִּזְבַּ֥ח בָּעֶ֛רֶב בַּיּ֥וֹם הָרִאשׁ֖וֹן לַבֹּֽקֶר׃ (ה) לֹ֥א תוּכַ֖ל לִזְבֹּ֣חַ אֶת־הַפָּ֑סַח בְּאַחַ֣ד שְׁעָרֶ֔יךָ אֲשֶׁר־יי אֱלֹקֶ֖יךָ נֹתֵ֥ן לָֽךְ׃ (ו) כִּ֠י אִֽם־אֶל־הַמָּק֞וֹם אֲשֶׁר־יִבְחַ֨ר יי אֱלֹקֶ֙יךָ֙ לְשַׁכֵּ֣ן שְׁמ֔וֹ שָׁ֛ם תִּזְבַּ֥ח אֶת־הַפֶּ֖סַח בָּעָ֑רֶב כְּב֣וֹא הַשֶּׁ֔מֶשׁ מוֹעֵ֖ד צֵֽאתְךָ֥ מִמִּצְרָֽיִם׃ (ז) וּבִשַּׁלְתָּ֙ וְאָ֣כַלְתָּ֔ בַּמָּק֕וֹם אֲשֶׁ֥ר יִבְחַ֛ר יי אֱלֹקֶ֖יךָ בּ֑וֹ וּפָנִ֣יתָ בַבֹּ֔קֶר וְהָלַכְתָּ֖ לְאֹהָלֶֽיךָ׃ (ח) שֵׁ֥שֶׁת יָמִ֖ים תֹּאכַ֣ל מַצּ֑וֹת וּבַיּ֣וֹם הַשְּׁבִיעִ֗י עֲצֶ֙רֶת֙ לַיי אֱלֹקֶ֔יךָ לֹ֥א תַעֲשֶׂ֖ה מְלָאכָֽה׃ (ס)

Deuteronomy 16:1-8

(1) Observe the month of Abib and offer a passover sacrifice to the LORD your God, for it was in the month of Abib, at night, that the LORD your God freed you from Egypt. (2) You shall slaughter the passover sacrifice for the LORD your God, from the flock and the herd, in the place where the LORD will choose to establish His name. (3) You shall not eat anything leavened with it; for seven days thereafter you shall eat unleavened bread, bread of distress—for you departed from the land of Egypt hurriedly—so that you may remember the day of your departure from the land of Egypt as long as you live. (4) For seven days no leaven shall be found with you in all your territory, and none of the flesh of what you slaughter on the evening of the first day shall be left until morning. (5) You are not permitted to slaughter the passover sacrifice in any of the settlements that the LORD your God is giving you; (6) but at the place where the LORD your God will choose to establish His name, there alone shall you slaughter the passover sacrifice, in the evening, at sundown, the time of day when you departed from Egypt. (7) You shall cook and eat it at the place that the LORD your God will choose; and in the morning you may start back on your journey home. (8) After eating unleavened bread six days, you shall hold a solemn gathering for the LORD your God on the seventh day: you shall do no work.

This source describes the first Pesach celebrated by the Jews upon entering the Land of Israel

יהושע ה׳:י׳-י״ב

(י) וַיַּחֲנ֥וּ בְנֵֽי־יִשְׂרָאֵ֖ל בַּגִּלְגָּ֑ל וַיַּעֲשׂ֣וּ אֶת־הַפֶּ֡סַח בְּאַרְבָּעָה֩ עָשָׂ֨ר י֥וֹם לַחֹ֛דֶשׁ בָּעֶ֖רֶב בְּעַֽרְב֥וֹת יְרִיחֽוֹ׃ (יא) וַיֹּ֨אכְל֜וּ מֵעֲב֥וּר הָאָ֛רֶץ מִמָּֽחֳרַ֥ת הַפֶּ֖סַח מַצּ֣וֹת וְקָל֑וּי בְּעֶ֖צֶם הַיּ֥וֹם הַזֶּֽה׃ (יב) וַיִּשְׁבֹּ֨ת הַמָּ֜ן מִֽמָּחֳרָ֗ת בְּאָכְלָם֙ מֵעֲב֣וּר הָאָ֔רֶץ וְלֹא־הָ֥יָה ע֛וֹד לִבְנֵ֥י יִשְׂרָאֵ֖ל מָ֑ן וַיֹּאכְל֗וּ מִתְּבוּאַת֙ אֶ֣רֶץ כְּנַ֔עַן בַּשָּׁנָ֖ה הַהִֽיא׃ (ס)

Joshua 5:10-12

(10) Encamped at Gilgal, in the steppes of Jericho, the Israelites offered the passover sacrifice on the fourteenth day of the month, toward evening. (11) On the day after the passover offering, on that very day, they ate of the produce of the country, unleavened bread and parched grain. (12) On that same day, when they ate of the produce of the land, the manna ceased. The Israelites got no more manna; that year they ate of the yield of the land of Canaan.

Throughout Navi and Kesuvim we find the Korban Pesach being protrayed as part of a larger, national covenant renewal ceremony. source describes the Covenant Renewal

מלכים ב כ״ג:כ״א-כ״ג

(כא) וַיְצַ֤ו הַמֶּ֙לֶךְ֙ אֶת־כָּל־הָעָ֣ם לֵאמֹ֔ר עֲשׂ֣וּ פֶ֔סַח לַֽיי אֱלֹֽקֵיכֶ֑ם כַּכָּת֕וּב עַ֛ל סֵ֥פֶר הַבְּרִ֖ית הַזֶּֽה׃ (כב) כִּ֣י לֹ֤א נַֽעֲשָׂה֙ כַּפֶּ֣סַח הַזֶּ֔ה מִימֵי֙ הַשֹּׁ֣פְטִ֔ים אֲשֶׁ֥ר שָׁפְט֖וּ אֶת־יִשְׂרָאֵ֑ל וְכֹ֗ל יְמֵ֛י מַלְכֵ֥י יִשְׂרָאֵ֖ל וּמַלְכֵ֥י יְהוּדָֽה׃ (כג) כִּ֗י אִם־בִּשְׁמֹנֶ֤ה עֶשְׂרֵה֙ שָׁנָ֔ה לַמֶּ֖לֶךְ יֹֽאשִׁיָּ֑הוּ נַעֲשָׂ֞ה הַפֶּ֧סַח הַזֶּ֛ה לַיי בִּירוּשָׁלִָֽם׃

II Kings 23:21-23

(21) The king commanded all the people, “Offer the passover sacrifice to the LORD your God as prescribed in this scroll of the covenant.” (22) Now the passover sacrifice had not been offered in that manner in the days of the chieftains who ruled Israel, or during the days of the kings of Israel and the kings of Judah. (23) Only in the eighteenth year of King Josiah was such a passover sacrifice offered in that manner to the LORD in Jerusalem.

In Yechezkel's recapitulation of the Mitzvos, he describes the bringing of the Korban Pesach and celebrating the Holiday of Pesach for seven days. Both tranditional commentaries (including the Gemarah) and Academics work to reconcile Yechezkel's "laws" and the Torah's "laws."

יחזקאל מ״ה:כ״א-כ״ד

(כא) בָּ֠רִאשׁוֹן בְּאַרְבָּעָ֨ה עָשָׂ֥ר יוֹם֙ לַחֹ֔דֶשׁ יִהְיֶ֥ה לָכֶ֖ם הַפָּ֑סַח חָ֕ג שְׁבֻע֣וֹת יָמִ֔ים מַצּ֖וֹת יֵאָכֵֽל׃ (כב) וְעָשָׂ֤ה הַנָּשִׂיא֙ בַּיּ֣וֹם הַה֔וּא בַּעֲד֕וֹ וּבְעַ֖ד כָּל־עַ֣ם הָאָ֑רֶץ פַּ֖ר חַטָּֽאת׃ (כג) וְשִׁבְעַ֨ת יְמֵֽי־הֶחָ֜ג יַעֲשֶׂ֧ה עוֹלָ֣ה לַֽיי שִׁבְעַ֣ת פָּ֠רִים וְשִׁבְעַ֨ת אֵילִ֤ים תְּמִימִם֙ לַיּ֔וֹם שִׁבְעַ֖ת הַיָּמִ֑ים וְחַטָּ֕את שְׂעִ֥יר עִזִּ֖ים לַיּֽוֹם׃ (כד) וּמִנְחָ֗ה אֵיפָ֥ה לַפָּ֛ר וְאֵיפָ֥ה לָאַ֖יִל יַֽעֲשֶׂ֑ה וְשֶׁ֖מֶן הִ֥ין לָאֵיפָֽה׃

Ezekiel 45:21-24

(21) On the fourteenth day of the first month you shall have the passover sacrifice; and during a festival of seven days unleavened bread shall be eaten. (22) On that day, the prince shall provide a bull of sin offering on behalf of himself and of the entire population; (23) and during the seven days of the festival, he shall provide daily—for seven days—seven bulls and seven rams, without blemish, for a burnt offering to the LORD, and one goat daily for a sin offering. (24) He shall provide a meal offering of an ephah for each bull and an ephah for each ram, with a hin of oil to every ephah.

This source describes the renewal covenant during the times of Ezra at the start of the Second Commonwealth.

עזרא ו׳:י״ט-כ״ב

(יט) וַיַּעֲשׂ֥וּ בְנֵי־הַגּוֹלָ֖ה אֶת־הַפָּ֑סַח בְּאַרְבָּעָ֥ה עָשָׂ֖ר לַחֹ֥דֶשׁ הָרִאשֽׁוֹן׃ (כ) כִּ֣י הִֽטַּהֲר֞וּ הַכֹּהֲנִ֧ים וְהַלְוִיִּ֛ם כְּאֶחָ֖ד כֻּלָּ֣ם טְהוֹרִ֑ים וַיִּשְׁחֲט֤וּ הַפֶּ֙סַח֙ לְכָל־בְּנֵ֣י הַגּוֹלָ֔ה וְלַאֲחֵיהֶ֥ם הַכֹּהֲנִ֖ים וְלָהֶֽם׃ (כא) וַיֹּאכְל֣וּ בְנֵֽי־יִשְׂרָאֵ֗ל הַשָּׁבִים֙ מֵֽהַגּוֹלָ֔ה וְכֹ֗ל הַנִּבְדָּ֛ל מִטֻּמְאַ֥ת גּוֹיֵֽ־הָאָ֖רֶץ אֲלֵקֶ֑ם לִדְרֹ֕שׁ לַֽיי אֱלֹקֵ֥י יִשְׂרָאֵֽל׃ (כב) וַיַּֽעֲשׂ֧וּ חַג־מַצּ֛וֹת שִׁבְעַ֥ת יָמִ֖ים בְּשִׂמְחָ֑ה כִּ֣י ׀ שִׂמְּחָ֣ם יי וְֽהֵסֵ֞ב לֵ֤ב מֶֽלֶךְ־אַשּׁוּר֙ עֲלֵיהֶ֔ם לְחַזֵּ֣ק יְדֵיהֶ֔ם בִּמְלֶ֥אכֶת בֵּית־הָאֱלֹקִ֖ים אֱלֹקֵ֥י יִשְׂרָאֵֽל׃ (פ)

Ezra 6:19-22

(19) The returned exiles celebrated the Passover on the fourteenth day of the first month, (20) for the priests and Levites had purified themselves to a man; they were all pure. They slaughtered the passover offering for all the returned exiles, and for their brother priests and for themselves. (21) The children of Israel who had returned from the exile, together with all who joined them in separating themselves from the uncleanliness of the nations of the lands to worship the LORD God of Israel, ate of it. (22) They joyfully celebrated the Feast of Unleavened Bread for seven days, for the LORD had given them cause for joy by inclining the heart of the Assyrian king toward them so as to give them support in the work of the House of God, the God of Israel.

This source, in Divrei HaYomim, describes the bringing of the Korban Pesach during the reign of King Yechezkiyahu. Because both the Temple and the Jewish Nation were in states of impurity, the entire nation celebrated Pesach during Iyar.

דברי הימים ב ל׳:א׳-כ״ז

(א) וַיִּשְׁלַ֨ח יְחִזְקִיָּ֜הוּ עַל־כָּל־יִשְׂרָאֵ֣ל וִֽיהוּדָ֗ה וְגַֽם־אִגְּרוֹת֙ כָּתַב֙ עַל־אֶפְרַ֣יִם וּמְנַשֶּׁ֔ה לָב֥וֹא לְבֵית־יי בִּֽירוּשָׁלִָ֑ם לַעֲשׂ֣וֹת פֶּ֔סַח לַיי אֱלֹקֵ֥י יִשְׂרָאֵֽל׃ (ב) וַיִּוָּעַ֨ץ הַמֶּ֧לֶךְ וְשָׂרָ֛יו וְכָל־הַקָּהָ֖ל בִּירוּשָׁלִָ֑ם לַעֲשׂ֥וֹת הַפֶּ֖סַח בַּחֹ֥דֶשׁ הַשֵּׁנִֽי׃ (ג) כִּ֣י לֹ֧א יָכְל֛וּ לַעֲשֹׂת֖וֹ בָּעֵ֣ת הַהִ֑יא כִּ֤י הַכֹּהֲנִים֙ לֹֽא־הִתְקַדְּשׁ֣וּ לְמַדַּ֔י וְהָעָ֖ם לֹא־נֶאֶסְפ֥וּ לִֽירוּשָׁלִָֽם׃ (ד) וַיִּישַׁ֥ר הַדָּבָ֖ר בְּעֵינֵ֣י הַמֶּ֑לֶךְ וּבְעֵינֵ֖י כָּל־הַקָּהָֽל׃ (ה) וַיַּֽעֲמִ֣ידוּ דָבָ֗ר לְהַעֲבִ֨יר ק֤וֹל בְּכָל־יִשְׂרָאֵל֙ מִבְּאֵֽר־שֶׁ֣בַע וְעַד־דָּ֔ן לָב֞וֹא לַעֲשׂ֥וֹת פֶּ֛סַח לַיי אֱלֹהֵֽי־יִשְׂרָאֵ֖ל בִּירוּשָׁלִָ֑ם כִּ֣י לֹ֥א לָרֹ֛ב עָשׂ֖וּ כַּכָּתֽוּב׃ (ו) וַיֵּלְכוּ֩ הָרָצִ֨ים בָּֽאִגְּר֜וֹת מִיַּ֧ד הַמֶּ֣לֶךְ וְשָׂרָ֗יו בְּכָל־יִשְׂרָאֵל֙ וִֽיהוּדָ֔ה וּכְמִצְוַ֥ת הַמֶּ֖לֶךְ לֵאמֹ֑ר בְּנֵ֣י יִשְׂרָאֵ֗ל שׁ֚וּבוּ אֶל־יי אֱלֹקֵי֙ אַבְרָהָם֙ יִצְחָ֣ק וְיִשְׂרָאֵ֔ל וְיָשֹׁב֙ אֶל־הַפְּלֵיטָ֔ה הַנִּשְׁאֶ֣רֶת לָכֶ֔ם מִכַּ֖ף מַלְכֵ֥י אַשּֽׁוּר׃ (ז) וְאַל־תִּֽהְי֗וּ כַּאֲבֽוֹתֵיכֶם֙ וְכַ֣אֲחֵיכֶ֔ם אֲשֶׁ֣ר מָעֲל֔וּ בַּיי אֱלֹקֵ֣י אֲבוֹתֵיהֶ֑ם וַיִּתְּנֵ֣ם לְשַׁמָּ֔ה כַּאֲשֶׁ֖ר אַתֶּ֥ם רֹאִֽים׃ (ח) עַתָּ֕ה אַל־תַּקְשׁ֥וּ עָרְפְּכֶ֖ם כַּאֲבוֹתֵיכֶ֑ם תְּנוּ־יָ֣ד לַיי וּבֹ֤אוּ לְמִקְדָּשׁוֹ֙ אֲשֶׁ֣ר הִקְדִּ֣ישׁ לְעוֹלָ֔ם וְעִבְדוּ֙ אֶת־יי אֱלֹקֵיכֶ֔ם וְיָשֹׁ֥ב מִכֶּ֖ם חֲר֥וֹן אַפּֽוֹ׃ (ט) כִּ֣י בְשׁוּבְכֶ֞ם עַל־יי אֲחֵיכֶ֨ם וּבְנֵיכֶ֤ם לְרַחֲמִים֙ לִפְנֵ֣י שֽׁוֹבֵיהֶ֔ם וְלָשׁ֖וּב לָאָ֣רֶץ הַזֹּ֑את כִּֽי־חַנּ֤וּן וְרַחוּם֙ יי אֱלֹקֵיכֶ֔ם וְלֹא־יָסִ֤יר פָּנִים֙ מִכֶּ֔ם אִם־תָּשׁ֖וּבוּ אֵלָֽיו׃ (פ) (י) וַיִּֽהְי֨וּ הָרָצִ֜ים עֹבְרִ֨ים מֵעִ֧יר ׀ לָעִ֛יר בְּאֶֽרֶץ־אֶפְרַ֥יִם וּמְנַשֶּׁ֖ה וְעַד־זְבֻל֑וּן וַיִּֽהְיוּ֙ מַשְׂחִיקִ֣ים עֲלֵיהֶ֔ם וּמַלְעִגִ֖ים בָּֽם׃ (יא) אַךְ־אֲנָשִׁ֛ים מֵאָשֵׁ֥ר וּמְנַשֶּׁ֖ה וּמִזְּבֻל֑וּן נִֽכְנְע֔וּ וַיָּבֹ֖אוּ לִירוּשָׁלִָֽם׃ (יב) גַּ֣ם בִּיהוּדָ֗ה הָֽיְתָה֙ יַ֣ד הָאֱלֹקִ֔ים לָתֵ֥ת לָהֶ֖ם לֵ֣ב אֶחָ֑ד לַעֲשׂ֞וֹת מִצְוַ֥ת הַמֶּ֛לֶךְ וְהַשָּׂרִ֖ים בִּדְבַ֥ר יְהוָֽה׃ (יג) וַיֵּֽאָסְפ֤וּ יְרוּשָׁלִַ֙ם֙ עַם־רָ֔ב לַעֲשׂ֛וֹת אֶת־חַ֥ג הַמַּצּ֖וֹת בַּחֹ֣דֶשׁ הַשֵּׁנִ֑י קָהָ֖ל לָרֹ֥ב מְאֹֽד׃ (יד) וַיָּקֻ֕מוּ וַיָּסִ֙ירוּ֙ אֶת־הַֽמִּזְבְּח֔וֹת אֲשֶׁ֖ר בִּירוּשָׁלִָ֑ם וְאֵ֤ת כָּל־הַֽמְקַטְּרוֹת֙ הֵסִ֔ירוּ וַיַּשְׁלִ֖יכוּ לְנַ֥חַל קִדְרֽוֹן׃ (טו) וַיִּשְׁחֲט֣וּ הַפֶּ֔סַח בְּאַרְבָּעָ֥ה עָשָׂ֖ר לַחֹ֣דֶשׁ הַשֵּׁנִ֑י וְהַכֹּהֲנִ֨ים וְהַלְוִיִּ֤ם נִכְלְמוּ֙ וַיִּֽתְקַדְּשׁ֔וּ וַיָּבִ֥יאוּ עֹל֖וֹת בֵּ֥ית יְהוָֽה׃ (טז) וַיַּֽעַמְד֤וּ עַל־עָמְדָם֙ כְּמִשְׁפָּטָ֔ם כְּתוֹרַ֖ת מֹשֶׁ֣ה אִישׁ־הָאֱלֹקִ֑ים הַכֹּֽהֲנִים֙ זֹרְקִ֣ים אֶת־הַדָּ֔ם מִיַּ֖ד הַלְוִיִּֽם׃ (יז) כִּי־רַבַּ֥ת בַּקָּהָ֖ל אֲשֶׁ֣ר לֹא־הִתְקַדָּ֑שׁוּ וְהַלְוִיִּ֞ם עַל־שְׁחִיטַ֣ת הַפְּסָחִ֗ים לְכֹל֙ לֹ֣א טָה֔וֹר לְהַקְדִּ֖ישׁ לַיהוָֽה׃ (יח) כִּ֣י מַרְבִּ֣ית הָעָ֡ם רַ֠בַּת מֵֽאֶפְרַ֨יִם וּמְנַשֶּׁ֜ה יִשָּׂשכָ֤ר וּזְבֻלוּן֙ לֹ֣א הִטֶּהָ֔רוּ כִּֽי־אָכְל֥וּ אֶת־הַפֶּ֖סַח בְּלֹ֣א כַכָּת֑וּב כִּי֩ הִתְפַּלֵּ֨ל יְחִזְקִיָּ֤הוּ עֲלֵיהֶם֙ לֵאמֹ֔ר יי הַטּ֖וֹב יְכַפֵּ֥ר בְּעַֽד׃ (יט) כָּל־לְבָב֣וֹ הֵכִ֔ין לִדְר֛וֹשׁ הָאֱלֹקִ֥ים ׀ יי אֱלֹקֵ֣י אֲבוֹתָ֑יו וְלֹ֖א כְּטָהֳרַ֥ת הַקֹּֽדֶשׁ׃ (ס) (כ) וַיִּשְׁמַ֤ע יי אֶל־יְחִזְקִיָּ֔הוּ וַיִּרְפָּ֖א אֶת־הָעָֽם׃ (ס) (כא) וַיַּעֲשׂ֣וּ בְנֵֽי־יִ֠שְׂרָאֵל הַנִּמְצְאִ֨ים בִּירוּשָׁלִַ֜ם אֶת־חַ֧ג הַמַּצּ֛וֹת שִׁבְעַ֥ת יָמִ֖ים בְּשִׂמְחָ֣ה גְדוֹלָ֑ה וּֽמְהַלְלִ֣ים לַ֠יי י֣וֹם ׀ בְּי֞וֹם הַלְוִיִּ֧ם וְהַכֹּהֲנִ֛ים בִּכְלֵי־עֹ֖ז לַיי (ס) (כב) וַיְדַבֵּ֣ר יְחִזְקִיָּ֗הוּ עַל־לֵב֙ כָּל־הַלְוִיִּ֔ם הַמַּשְׂכִּילִ֥ים שֵֽׂכֶל־ט֖וֹב לַיי וַיֹּאכְל֤וּ אֶת־הַמּוֹעֵד֙ שִׁבְעַ֣ת הַיָּמִ֔ים מְזַבְּחִים֙ זִבְחֵ֣י שְׁלָמִ֔ים וּמִ֨תְוַדִּ֔ים לַיי אֱלֹקֵ֥י אֲבוֹתֵיהֶֽם׃ (ס) (כג) וַיִּוָּֽעֲצוּ֙ כָּל־הַקָּהָ֔ל לַעֲשׂ֕וֹת שִׁבְעַ֥ת יָמִ֖ים אֲחֵרִ֑ים וַיַּֽעֲשׂ֥וּ שִׁבְעַת־יָמִ֖ים שִׂמְחָֽה׃ (כד) כִּ֣י חִזְקִיָּ֣הוּ מֶֽלֶךְ־יְ֠הוּדָה הֵרִ֨ים לַקָּהָ֜ל אֶ֣לֶף פָּרִים֮ וְשִׁבְעַ֣ת אֲלָפִ֣ים צֹאן֒ (ס) וְהַשָּׂרִ֞ים הֵרִ֤ימוּ לַקָּהָל֙ פָּרִ֣ים אֶ֔לֶף וְצֹ֖אן עֲשֶׂ֣רֶת אֲלָפִ֑ים וַיִּֽתְקַדְּשׁ֥וּ כֹהֲנִ֖ים לָרֹֽב׃ (כה) וַֽיִּשְׂמְח֣וּ ׀ כָּל־קְהַ֣ל יְהוּדָ֗ה וְהַכֹּהֲנִים֙ וְהַלְוִיִּ֔ם וְכָל־הַקָּהָ֖ל הַבָּאִ֣ים מִיִּשְׂרָאֵ֑ל וְהַגֵּרִ֗ים הַבָּאִים֙ מֵאֶ֣רֶץ יִשְׂרָאֵ֔ל וְהַיּוֹשְׁבִ֖ים בִּיהוּדָֽה׃ (כו) וַתְּהִ֥י שִׂמְחָֽה־גְדוֹלָ֖ה בִּֽירוּשָׁלִָ֑ם כִּ֠י מִימֵ֞י שְׁלֹמֹ֤ה בֶן־דָּוִיד֙ מֶ֣לֶךְ יִשְׂרָאֵ֔ל לֹ֥א כָזֹ֖את בִּירוּשָׁלִָֽם׃ (ס) (כז) וַיָּקֻ֜מוּ הַכֹּהֲנִ֤ים הַלְוִיִּם֙ וַיְבָרֲכ֣וּ אֶת־הָעָ֔ם וַיִּשָּׁמַ֖ע בְּקוֹלָ֑ם וַתָּב֧וֹא תְפִלָּתָ֛ם לִמְע֥וֹן קָדְשׁ֖וֹ לַשָּׁמָֽיִם׃ (פ)

II Chronicles 30:1-27

(1) Hezekiah sent word to all Israel and Judah; he also wrote letters to Ephraim and Manasseh to come to the House of the LORD in Jerusalem to keep the Passover for the LORD God of Israel. (2) The king and his officers and the congregation in Jerusalem had agreed to keep the Passover in the second month, (3) for at the time, they were unable to keep it, for not enough priests had sanctified themselves, nor had the people assembled in Jerusalem. (4) The king and the whole congregation thought it proper (5) to issue a decree and proclaim throughout all Israel from Beer-sheba to Dan that they come and keep the Passover for the LORD God of Israel in Jerusalem—not often did they act in accord with what was written. (6) The couriers went out with the letters from the king and his officers through all Israel and Judah, by order of the king, proclaiming, “O you Israelites! Return to the LORD God of your fathers, Abraham, Isaac, and Israel, and He will return to the remnant of you who escaped from the hand of the kings of Assyria. (7) Do not be like your fathers and brothers who trespassed against the LORD God of their fathers and He turned them into a horror, as you see. (8) Now do not be stiffnecked like your fathers; submit yourselves to the LORD and come to His sanctuary, which He consecrated forever, and serve the LORD your God so that His anger may turn back from you. (9) If you return to the LORD, your brothers and children will be regarded with compassion by their captors, and will return to this land; for the LORD your God is gracious and merciful; He will not turn His face from you if you return to Him.” (10) As the couriers passed from town to town in the land of Ephraim and Manasseh till they reached Zebulun, they were laughed at and mocked. (11) Some of the people of Asher and Manasseh and Zebulun, however, were contrite, and came to Jerusalem. (12) The hand of God was on Judah, too, making them of a single mind to carry out the command of the king and officers concerning the ordinance of the LORD. (13) A great crowd assembled at Jerusalem to keep the Feast of Unleavened Bread in the second month, a very great congregation. (14) They set to and removed the altars that were in Jerusalem, and they removed all the incense stands and threw them into Wadi Kidron. (15) They slaughtered the paschal sacrifice on the fourteenth of the second month. The priests and Levites were ashamed, and they sanctified themselves and brought burnt offerings to the House of the LORD. (16) They took their stations, as was their rule according to the Teaching of Moses, man of God. The priests dashed the blood [which they received] from the Levites. (17) Since many in the congregation had not sanctified themselves, the Levites were in charge of slaughtering the paschal sacrifice for everyone who was not clean, so as to consecrate them to the LORD. (18) For most of the people—many from Ephraim and Manasseh, Issachar and Zebulun—had not purified themselves, yet they ate the paschal sacrifice in violation of what was written. Hezekiah prayed for them, saying, “The good LORD will provide atonement for (19) everyone who set his mind on worshiping God, the LORD God of his fathers, even if he is not purified for the sanctuary.” (20) The LORD heard Hezekiah and healed the people. (21) The Israelites who were in Jerusalem kept the Feast of Unleavened Bread seven days, with great rejoicing, the Levites and the priests praising the LORD daily with powerful instruments for the LORD. (22) Hezekiah persuaded all the Levites who performed skillfully for the LORD to spend the seven days of the festival making offerings of well-being, and confessing to the LORD God of their fathers. (23) All the congregation resolved to keep seven more days, so they kept seven more days of rejoicing. (24) King Hezekiah of Judah contributed to the congregation 1,000 bulls and 7,000 sheep. And the officers contributed to the congregation 1,000 bulls and 10,000 sheep. And the priests sanctified themselves in large numbers. (25) All the congregation of Judah and the priests and the Levites and all the congregation that came from Israel, and the resident aliens who came from the land of Israel and who lived in Judah, rejoiced. (26) There was great rejoicing in Jerusalem, for since the time of King Solomon son of David of Israel nothing like it had happened in Jerusalem. (27) The Levite priests rose and blessed the people, and their voice was heard, and their prayer went up to His holy abode, to heaven.

This source, again in Divrei HaYomim, retells the story of the renewal covenant during the reign of Yoshiyahu.

דברי הימים ב ל״ה:א׳-י״ט

(א) וַיַּ֨עַשׂ יֹאשִׁיָּ֧הוּ בִֽירוּשָׁלִַ֛ם פֶּ֖סַח לַיי וַיִּשְׁחֲט֣וּ הַפֶּ֔סַח בְּאַרְבָּעָ֥ה עָשָׂ֖ר לַחֹ֥דֶשׁ הָרִאשֽׁוֹן׃ (ב) וַיַּעֲמֵ֥ד הַכֹּהֲנִ֖ים עַל־מִשְׁמְרוֹתָ֑ם וַֽיְחַזְּקֵ֔ם לַעֲבוֹדַ֖ת בֵּ֥ית יְהוָֽה׃ (ג) וַיֹּ֣אמֶר לַ֠לְוִיִּם המבונים [הַמְּבִינִ֨ים] לְכָל־יִשְׂרָאֵ֜ל הַקְּדוֹשִׁ֣ים לַיי תְּנ֤וּ אֶת־אֲרוֹן־הַקֹּ֙דֶשׁ֙ בַּ֠בַּיִת אֲשֶׁ֨ר בָּנָ֜ה שְׁלֹמֹ֤ה בֶן־דָּוִיד֙ מֶ֣לֶךְ יִשְׂרָאֵ֔ל אֵין־לָכֶ֥ם מַשָּׂ֖א בַּכָּתֵ֑ף עַתָּ֗ה עִבְדוּ֙ אֶת־יי אֱלֹֽקֵיכֶ֔ם וְאֵ֖ת עַמּ֥וֹ יִשְׂרָאֵֽל׃ (ד) וְהָכִ֥ונוּ לְבֵית־אֲבוֹתֵיכֶ֖ם כְּמַחְלְקוֹתֵיכֶ֑ם בִּכְתָ֗ב דָּוִיד֙ מֶ֣לֶךְ יִשְׂרָאֵ֔ל וּבְמִכְתַּ֖ב שְׁלֹמֹ֥ה בְנֽוֹ׃ (ה) וְעִמְד֣וּ בַקֹּ֗דֶשׁ לִפְלֻגּוֹת֙ בֵּ֣ית הָֽאָב֔וֹת לַאֲחֵיכֶ֖ם בְּנֵ֣י הָעָ֑ם וַחֲלֻקַּ֥ת בֵּֽית־אָ֖ב לַלְוִיִּֽם׃ (ו) וְשַׁחֲט֖וּ הַפָּ֑סַח וְהִתְקַדְּשׁוּ֙ וְהָכִ֣ינוּ לַאֲחֵיכֶ֔ם לַעֲשׂ֥וֹת כִּדְבַר־יי בְּיַד־מֹשֶֽׁה׃ (פ) (ז) וַיָּ֣רֶם יֹאשִׁיָּ֣הוּ לִבְנֵ֪י הָעָ֟ם צֹ֞אן כְּבָשִׂ֣ים וּבְנֵֽי־עִזִּים֮ הַכֹּ֣ל לַפְּסָחִים֒ לְכָל־הַנִּמְצָ֗א לְמִסְפַּר֙ שְׁלֹשִׁ֣ים אֶ֔לֶף וּבָקָ֖ר שְׁלֹ֣שֶׁת אֲלָפִ֑ים אֵ֖לֶּה מֵרְכ֥וּשׁ הַמֶּֽלֶךְ׃ (ס) (ח) וְשָׂרָ֞יו לִנְדָבָ֥ה לָעָ֛ם לַכֹּהֲנִ֥ים וְלַלְוִיִּ֖ם הֵרִ֑ימוּ חִלְקִיָּ֨ה וּזְכַרְיָ֜הוּ וִֽיחִיאֵ֗ל נְגִידֵי֙ בֵּ֣ית הָאֱלֹקִ֔ים לַכֹּהֲנִ֞ים נָתְנ֣וּ לַפְּסָחִ֗ים אַלְפַּ֙יִם֙ וְשֵׁ֣שׁ מֵא֔וֹת וּבָקָ֖ר שְׁלֹ֥שׁ מֵאֽוֹת׃ (ט) וכונניהו [וְ֠כָֽנַנְיָהוּ] וּשְׁמַֽעְיָ֨הוּ וּנְתַנְאֵ֜ל אֶחָ֗יו וַחֲשַׁבְיָ֧הוּ וִיעִיאֵ֛ל וְיוֹזָבָ֖ד שָׂרֵ֣י הַלְוִיִּ֑ם הֵרִ֨ימוּ לַלְוִיִּ֤ם לַפְּסָחִים֙ חֲמֵ֣שֶׁת אֲלָפִ֔ים וּבָקָ֖ר חֲמֵ֥שׁ מֵאֽוֹת׃ (י) וַתִּכּ֖וֹן הָעֲבוֹדָ֑ה וַיַּֽעַמְד֨וּ הַכֹּהֲנִ֧ים עַל־עָמְדָ֛ם וְהַלְוִיִּ֥ם עַל־מַחְלְקוֹתָ֖ם כְּמִצְוַ֥ת הַמֶּֽלֶךְ׃ (יא) וַֽיִּשְׁחֲט֖וּ הַפָּ֑סַח וַיִּזְרְק֤וּ הַכֹּהֲנִים֙ מִיָּדָ֔ם וְהַלְוִיִּ֖ם מַפְשִׁיטִֽים׃ (יב) וַיָּסִ֨ירוּ הָעֹלָ֜ה לְ֠תִתָּם לְמִפְלַגּ֤וֹת לְבֵית־אָבוֹת֙ לִבְנֵ֣י הָעָ֔ם לְהַקְרִיב֙ לַיי כַּכָּת֖וּב בְּסֵ֣פֶר מֹשֶׁ֑ה וְכֵ֖ן לַבָּקָֽר׃ (יג) וַֽיְבַשְּׁל֥וּ הַפֶּ֛סַח בָּאֵ֖שׁ כַּמִּשְׁפָּ֑ט וְהַקֳּדָשִׁ֣ים בִּשְּׁל֗וּ בַּסִּיר֤וֹת וּבַדְּוָדִים֙ וּבַצֵּ֣לָח֔וֹת וַיָּרִ֖יצוּ לְכָל־בְּנֵ֥י הָעָֽם׃ (יד) וְאַחַ֗ר הֵכִ֤ינוּ לָהֶם֙ וְלַכֹּ֣הֲנִ֔ים כִּ֤י הַכֹּהֲנִים֙ בְּנֵ֣י אַהֲרֹ֔ן בְּהַֽעֲל֛וֹת הָעוֹלָ֥ה וְהַחֲלָבִ֖ים עַד־לָ֑יְלָה וְהַלְוִיִּם֙ הֵכִ֣ינוּ לָהֶ֔ם וְלַכֹּהֲנִ֖ים בְּנֵ֥י אַהֲרֹֽן׃ (טו) וְהַמְשֹֽׁרֲרִ֨ים בְּנֵי־אָסָ֜ף עַל־מַעֲמָדָ֗ם כְּמִצְוַ֤ת דָּוִיד֙ וְאָסָ֞ף וְהֵימָ֤ן וִֽידֻתוּן֙ חוֹזֵ֣ה הַמֶּ֔לֶךְ וְהַשֹּׁעֲרִ֖ים לְשַׁ֣עַר וָשָׁ֑עַר אֵ֣ין לָהֶ֗ם לָסוּר֙ מֵעַ֣ל עֲבֹֽדָתָ֔ם כִּֽי־אֲחֵיהֶ֥ם הַלְוִיִּ֖ם הֵכִ֥ינוּ לָהֶֽם׃ (טז) וַ֠תִּכּוֹן כָּל־עֲבוֹדַ֨ת יי בַּיּ֤וֹם הַהוּא֙ לַעֲשׂ֣וֹת הַפֶּ֔סַח וְהַעֲל֣וֹת עֹל֔וֹת עַ֖ל מִזְבַּ֣ח יי כְּמִצְוַ֖ת הַמֶּ֥לֶךְ יֹאשִׁיָּֽהוּ׃ (יז) וַיַּעֲשׂ֨וּ בְנֵֽי־יִשְׂרָאֵ֧ל הַֽנִּמְצְאִ֛ים אֶת־הַפֶּ֖סַח בָּעֵ֣ת הַהִ֑יא וְאֶת־חַ֥ג הַמַּצּ֖וֹת שִׁבְעַ֥ת יָמִֽים׃ (יח) וְלֹֽא־נַעֲשָׂ֨ה פֶ֤סַח כָּמֹ֙הוּ֙ בְּיִשְׂרָאֵ֔ל מִימֵ֖י שְׁמוּאֵ֣ל הַנָּבִ֑יא וְכָל־מַלְכֵ֣י יִשְׂרָאֵ֣ל ׀ לֹֽא־עָשׂ֡וּ כַּפֶּ֣סַח אֲשֶׁר־עָשָׂ֣ה יֹֽ֠אשִׁיָּהוּ וְהַכֹּהֲנִ֨ים וְהַלְוִיִּ֤ם וְכָל־יְהוּדָה֙ וְיִשְׂרָאֵ֣ל הַנִּמְצָ֔א וְיוֹשְׁבֵ֖י יְרוּשָׁלִָֽם׃ (ס) (יט) בִּשְׁמוֹנֶ֤ה עֶשְׂרֵה֙ שָׁנָ֔ה לְמַלְכ֖וּת יֹאשִׁיָּ֑הוּ נַעֲשָׂ֖ה הַפֶּ֥סַח הַזֶּֽה׃

II Chronicles 35:1-19

(1) Josiah kept the Passover for the LORD in Jerusalem; the passover sacrifice was slaughtered on the fourteenth day of the first month. (2) He reinstated the priests in their shifts and rallied them to the service of the House of the LORD. (3) He said to the Levites, consecrated to the LORD, who taught all Israel, “Put the Holy Ark in the House that Solomon son of David, king of Israel, built; as you no longer carry it on your shoulders, see now to the service of the LORD your God and His people Israel, (4) and dispose yourselves by clans according to your divisions, as prescribed in the writing of King David of Israel and in the document of his son Solomon, (5) and attend in the Sanctuary, by clan divisions, on your kinsmen, the people—by clan divisions of the Levites. (6) Having sanctified yourselves, slaughter the passover sacrifice and prepare it for your kinsmen, according to the word of God given by Moses.” (7) Josiah donated to the people small cattle—lambs and goats, all for passover sacrifices for all present—to the sum of 30,000, and large cattle, 3,000—these from the property of the king. (8) His officers gave a freewill offering to the people, to the priests, and to the Levites. Hilkiah and Zechariah and Jehiel, the chiefs of the House of God, donated to the priests for passover sacrifices 2,600 [small cattle] and 300 large cattle. (9) Conaniah, Shemaiah, and Nethanel, his brothers, and Hashabiah and Jeiel and Jozabad, officers of the Levites, donated 5,000 [small cattle] and 500 large cattle to the Levites for passover sacrifices. (10) The service was arranged well: the priests stood at their posts and the Levites in their divisions, by the king’s command. (11) They slaughtered the passover sacrifice and the priests [received its blood] from them and dashed it, while the Levites flayed the animals. (12) They removed the parts to be burnt, distributing them to divisions of the people by clans, and making the sacrifices to the LORD, as prescribed in the scroll of Moses; they did the same for the cattle. (13) They roasted the passover sacrifice in fire, as prescribed, while the sacred offerings they cooked in pots, cauldrons, and pans, and conveyed them with dispatch to all the people. (14) Afterward they provided for themselves and the priests, for the Aaronite priests were busy offering the burnt offerings and the fatty parts until nightfall, so the Levites provided both for themselves and for the Aaronite priests. (15) The Asaphite singers were at their stations, by command of David and Asaph and Heman and Jeduthun, the seer of the king; and the gatekeepers were at each and every gate. They did not have to leave their tasks, because their Levite brothers provided for them. (16) The entire service of the LORD was arranged well that day, to keep the Passover and to make the burnt offerings on the altar of the LORD, according to the command of King Josiah. (17) All the Israelites present kept the Passover at that time, and the Feast of Unleavened Bread for seven days. (18) Since the time of the prophet Samuel, no Passover like that one had ever been kept in Israel; none of the kings of Israel had kept a Passover like the one kept by Josiah and the priests and the Levites and all Judah and Israel there present and the inhabitants of Jerusalem. (19) That Passover was kept in the eighteenth year of the reign of Josiah.

Four times the Torah mandates the retelling of the Exodus to our children. In the Haggadah, these are identified with four different "sons" i.e., dispositions. The attribution of any particular Pasuk to a specific child is the subject of some debate.

שמות י״ב:כ״ו

(כו) וְהָיָ֕ה כִּֽי־יֹאמְר֥וּ אֲלֵיכֶ֖ם בְּנֵיכֶ֑ם מָ֛ה הָעֲבֹדָ֥ה הַזֹּ֖את לָכֶֽם׃

Exodus 12:26

(26) And when your children ask you, ‘What do you mean by this rite?’

שמות י״ג:י״ד

(יד) וְהָיָ֞ה כִּֽי־יִשְׁאָלְךָ֥ בִנְךָ֛ מָחָ֖ר לֵאמֹ֣ר מַה־זֹּ֑את וְאָמַרְתָּ֣ אֵלָ֔יו בְּחֹ֣זֶק יָ֗ד הוֹצִיאָ֧נוּ יי מִמִּצְרַ֖יִם מִבֵּ֥ית עֲבָדִֽים׃

Exodus 13:14

(14) And when, in time to come, your son asks you, saying, ‘What does this mean?’ you shall say to him, ‘It was with a mighty hand that the LORD brought us out from Egypt, the house of bondage.

שמות י״ג:ח׳

(ח) וְהִגַּדְתָּ֣ לְבִנְךָ֔ בַּיּ֥וֹם הַה֖וּא לֵאמֹ֑ר בַּעֲב֣וּר זֶ֗ה עָשָׂ֤ה יי לִ֔י בְּצֵאתִ֖י מִמִּצְרָֽיִם׃

Exodus 13:8

(8) And you shall explain to your son on that day, ‘It is because of what the LORD did for me when I went free from Egypt.’

דברים ו׳:כ׳-כ״א

(כ) כִּֽי־יִשְׁאָלְךָ֥ בִנְךָ֛ מָחָ֖ר לֵאמֹ֑ר מָ֣ה הָעֵדֹ֗ת וְהַֽחֻקִּים֙ וְהַמִּשְׁפָּטִ֔ים אֲשֶׁ֥ר צִוָּ֛ה יי אֱלֹקֵ֖ינוּ אֶתְכֶֽם׃ (כא) וְאָמַרְתָּ֣ לְבִנְךָ֔ עֲבָדִ֛ים הָיִ֥ינוּ לְפַרְעֹ֖ה בְּמִצְרָ֑יִם וַיּוֹצִיאֵ֧נוּ יי מִמִּצְרַ֖יִם בְּיָ֥ד חֲזָקָֽה׃

Deuteronomy 6:20-21

(20) When, in time to come, your children ask you, “What mean the decrees, laws, and rules that the LORD our God has enjoined upon you?” (21) you shall say to your children, “We were slaves to Pharaoh in Egypt and the LORD freed us from Egypt with a mighty hand.

This is the opening law from the RAMBAM regarding the commandment to bring the Korban Pesach.

משנה תורה, הלכות קרבן פסח א׳:א׳-ב׳

(א) מִצְוַת עֲשֵׂה לִשְׁחֹט אֶת הַפֶּסַח בְּאַרְבָּעָה עָשָׂר לְחֹדֶשׁ נִיסָן אַחַר חֲצוֹת. וְאֵין שׁוֹחֲטִין אֶלָּא מִן הַכְּבָשִׂים אוֹ מִן הָעִזִּים בִּלְבַד זָכָר בֶּן שָׁנָה. וְאֶחָד הָאִישׁ וְאֶחָד הָאִשָּׁה חַיָּבִין בְּמִצְוָה זוֹ:

(ב) ומִי שֶׁבִּטֵּל מִצְוָה זוֹ בְּזָדוֹן וְעָבַר יוֹם אַרְבָּעָה עָשָׂר וְלֹא הִקְרִיב וְהוּא לֹא טָמֵא וְלֹא בַּדֶּרֶךְ רְחוֹקָה הֲרֵי זֶה חַיָּב כָּרֵת. וְאִם בִּטְּלָהּ בִּשְׁגָגָה פָּטוּר:

Mishneh Torah, Paschal Offering 1:1-2

...

In addition to the three core topics identified by Rabbi Akiva as being essential to the fulfillment of retelling the Exodus story, the Haggadah builds its narrative around the Pesukim found in this source. Originally, these Pesukim were said as part of the declaration made by the farmer when bringing his Bikkurim to the Beis HaMikdash. The Sifri (quoted in the next source) is the basis for the Midrash found in our Haggados.

דברים כ״ו:ה׳-ט׳

(ה) וְעָנִ֨יתָ וְאָמַרְתָּ֜ לִפְנֵ֣י ׀ יי אֱלֹקֶ֗יךָ אֲרַמִּי֙ אֹבֵ֣ד אָבִ֔י וַיֵּ֣רֶד מִצְרַ֔יְמָה וַיָּ֥גָר שָׁ֖ם בִּמְתֵ֣י מְעָ֑ט וַֽיְהִי־שָׁ֕ם לְג֥וֹי גָּד֖וֹל עָצ֥וּם וָרָֽב׃ (ו) וַיָּרֵ֧עוּ אֹתָ֛נוּ הַמִּצְרִ֖ים וַיְעַנּ֑וּנוּ וַיִּתְּנ֥וּ עָלֵ֖ינוּ עֲבֹדָ֥ה קָשָֽׁה׃ (ז) וַנִּצְעַ֕ק אֶל־יי אֱלֹקֵ֣י אֲבֹתֵ֑ינוּ וַיִּשְׁמַ֤ע יי אֶת־קֹלֵ֔נוּ וַיַּ֧רְא אֶת־עָנְיֵ֛נוּ וְאֶת־עֲמָלֵ֖נוּ וְאֶת־לַחֲצֵֽנוּ׃ (ח) וַיּוֹצִאֵ֤נוּ יי מִמִּצְרַ֔יִם בְּיָ֤ד חֲזָקָה֙ וּבִזְרֹ֣עַ נְטוּיָ֔ה וּבְמֹרָ֖א גָּדֹ֑ל וּבְאֹת֖וֹת וּבְמֹפְתִֽים׃ (ט) וַיְבִאֵ֖נוּ אֶל־הַמָּק֣וֹם הַזֶּ֑ה וַיִּתֶּן־לָ֙נוּ֙ אֶת־הָאָ֣רֶץ הַזֹּ֔את אֶ֛רֶץ זָבַ֥ת חָלָ֖ב וּדְבָֽשׁ׃

Deuteronomy 26:5-9

(5) You shall then recite as follows before the LORD your God: “My father was a fugitive Aramean. He went down to Egypt with meager numbers and sojourned there; but there he became a great and very populous nation. (6) The Egyptians dealt harshly with us and oppressed us; they imposed heavy labor upon us. (7) We cried to the LORD, the God of our fathers, and the LORD heard our plea and saw our plight, our misery, and our oppression. (8) The LORD freed us from Egypt by a mighty hand, by an outstretched arm and awesome power, and by signs and portents. (9) He brought us to this place and gave us this land, a land flowing with milk and honey.

ספרי דברים ש״א:ג׳-כ״ה

(ג) ואמרת לפני יי א', ארמי אובד אבי. מלמד שלא ירד יעקב לארם, אלא (לאובד) [להאבד]. ומעלה על לבן הארמי, כאלו איבדו.

(ד) וירד מצרימה.(מלמד שלא ירד להשתקע, אלא לגור שם.) שמא תאמר, ירד ליטול כתר מלכות? ת"ל ויגר שם [מלמד שלא ירד אלא לגור שם. וכה"א ויאמרו אל פרעה לגור בארץ באנו, כי אין מרעה לצאן אשר לעבדיך כי כבד הרעב בארץ כנען, ועתה ישבו נא עבדיך בארץ גשן]. יכול באוכלוסין הרבה? ת"ל במתי מעט. כמה שנאמר, בשבעים נפש ירדו אבותיך מצרימה.

(ה) ויהי שם לגוי (גדול). מלמד שהיו ישראל מצוינים שם.

(ו) (וירא את ענינו. כמה שנאמר, וראיתן על האבנים.

(ז) ואת עמלנו. כמה שנאמר, כל הבן הילוד היאורה תשליכהו וכו'. אגדה).

(ח) [גדול ועצום. כמה שנאמר, ובני ישראל פרו וישרצו וירבו ויעצמו במאד מאד, ותמלא הארץ אותם.

(ט) ורב. כמה שנאמר, רבבה כצמח השדה נתתיך, ותרבי ותגדלי ותבאי בעדי עדיים וגו'].

(י) וירעו אותנו המצרים. כמ"ש הבה נתחכמה לו פן ירבה, והיה כי תקראנה מלחמה וגו'.

(יא) ויענונו. כמ"ש וישימו עליו שרי מסים למען ענותו בסבלותם, ויבן ערי מסכנות לפרעה וגו'.

(יב) ויתנו עלינו עבודה קשה. כמ"ש ויעבידו מצרים את בני ישראל בפרך, וימררו את חייבם בעבודה קשה בחומר ובלבנים ובכל עבודה בשדה, את כל עבודתם אשר עבדו בהם בפרך.

(יג) ונצעק אל יי א-להי אבותינו. כמ"ש ויהי בימים הרבים ההם וימת מלך מצרים, ויאנחו בני ישראל מן העבודה ויזעקו וגו'.

(יד) וישמע יי את קולנו. כמ"ש וישמע א-להים את נאקתם וגו'.

(טו) וירא את ענינו. זו פרישות דרך ארץ, כמ"ש וירא א-להים את בני ישראל וידע א-להים.

(טז) ואת עמלנו. אלו הבנים, כמ"ש כל הבן הילוד היאורה תשליכהו וכל הבת תחיון.

(יז) ואת לחצנו. זו הדחק, כמ"ש וגם ראיתי את הלחץ אשר מצרים לוחצים אותם.

(יח) ויוציאנו יי. לא ע"י מלאך ולא ע"י שרף ולא ע"י שליח, כמה שנאמר ועברתי בארץ מצרים בלילה הזה והכיתי וגו'. ועברתי בארץ מצרים, אני ולא מלאך. והכיתי כל בכור, אני ולא שרף. ובכל אלקי מצרים אעשה שפטים, אני ולא השליח. אני יי.

(יט) ביד חזקה. זו הדבר, כמ"ש הנה יד יי הויה במקנך אשר בשדה וגו'.

(כ) ובזרוע נטויה. זו החרב, כמ"ש וחרבו שלופה בידו נטויה וגו'.

(כא) ובמורא גדול. זו גלוי שכינה, כמ"ש או הנסה א-להים לבוא לקחת לו גוי מקרב גוי, במסות באותות ובמופתים ובמלחמה וביד חזקה ובזרוע נטויה ובמוראים גדולים, ככל אשר עשה לכם יי א-להיכם במצרים לעיניך.

(כב) ובאותות. זה המטה, כמ"ש ואת המטה הזה תקח בידך, אשר תעשה בו את האותות.

(כג) ובמופתים. זה הדם, כמ"ש ונתתי מופתים בשמים ובארץ, דם ואש ותמרות עשן.

(כד) דבר אחר - ביד חזקה, שתים. ובזרוע נטויה, שתים. ובמורא גדול, שתים. ובאותות, שתים. ובמופתים, שתים. אלו עשר מכות שהביא הקב"ה על המצרים: דם, צפרדע, כנים, ערוב, דבר, שחין, ברד, ארבה, חשך, מכת בכורות].

(כה) ר' יהודה היה נותן בהם סימנים, דצ"ך עד"ש באח"ב.

Sifrei Devarim 301:3-25

(3) "and you shall say before the L-rd your G-d: 'An Aramean would destroy my father'": We are hereby apprised that Jacob went down to Aram to his own destruction, and Scripture accounts it to Lavan the Aramite as if he had destroyed him, (this having been his intention).

(4) "and he went down to Egypt": Lest you say he went down to receive the crown of kingdom; it is, therefore, written "vayagar sham": We are hereby apprised that he went down there only to sojourn ("lagur") there. And thus is it written (Bereshith 47:4) "And they said to Pharaoh: 'To sojourn in the land did we come. For there is no pasture for your servants' flocks. For the famine is sore in the land of Canaan. And now, let your servants abide in the land of Goshen.'" I might think, in great numbers; it is, therefore, written "in scant number," viz. (Devarim 10:22) "With seventy souls did your fathers go down to Egypt."

(5) "and he became there a nation": We are hereby apprised that Israel was distinctive there.

(6) ("and he saw our pain": as it states (Exodus 1:16): "And you see on the birthstool..."

(7) "and our toil": as it states (Exodus 1:22): Every son that is born shall you cast in the river". Aggadah).

(8) "great and mighty": as it is written (Shemoth 1:7) "And the children of Israel were fruitful and teemed and multiplied and became exceedingly strong, and the land was filled with them."

(9) "and populous": as it is written (Ezekiel 16:7) "I made you as numerous as the plants of the field; you increased and grew, and you entered the prime, etc."

(10) (Devarim, Ibid. 6) "And Egypt wrought evil unto us": as it is written (Shemoth 1:10) "Come, let us outsmart it, lest it become numerous, and it be, that if a war break out, etc."

(11) "and they afflicted us": as it is written (Ibid. 11) "And they appointed taskmasters over it in order to afflict it with their toils, and they built treasure cities for Pharaoh."

(12) "and they placed us under hard labor": as it is written (Ibid. 1:13-14) "And Egypt worked the children of Israel with (back-) breaking labor. And they embittered their lives with hard toil: with mortar, and with brick, and with all the labor of the field; all of the labor with which they worked them was (back-) breaking."

(13) (Devarim, Ibid. 7) "And we cried out to the L-rd, the G-d of our fathers": as it is written (Shemoth 2:23) "And it was in the course of those many days that the king of Egypt died, and the children of Israel moaned under the toil, and they cried out, etc."

(14) "and the L-rd heard our voices": as it is written (Shemoth, Ibid. 24) "And G-d heard their outcry."

(15) "And He saw our affliction": This refers to (enforced) separation from conjugal relations, as it is written (Shemoth, Ibid. 25) "… and G-d saw the children of Israel, and G-d knew (i.e., He "took it to heart.")

(16) "and our toil": the children, viz. (Shemoth 1:22) "Every son that is born, into the Nile shall you throw him, and every daughter shall you keep alive."

(17) "and our lachatz": This is oppression, viz. (Shemoth 3:9): "and I have also seen the oppression wherewith the Egyptians oppress them."

(18) (Devarim, Ibid. 8) "And the L-rd took us out": not through an angel, and not through a seraph, and not through a messenger, as it is written (Shemoth 12:12) "And I shall pass through the land of Egypt in this night, and I shall smite, etc.": "And I shall pass through the land of Egypt" — I, and not an angel. "and I shall smite every first-born" — I, and not a seraph. "and upon all the gods of Egypt I shall wreak judgments" — I, and not a messenger, "I am the L-rd."

(19) (Devarim, Ibid.) "with a strong hand": This is the pestilence, as it is written (Shemoth 9:3) "Behold, the hand of the L-rd is in your cattle in the field … a very sore pestilence."

(20) "and with an outstretched arm": This is the sword, as it is written (Joshua 5:13) "with his sword sh'lufah in his hand": ("sh'lufah" =) outstretched.

(21) "and with great fear": This is revelation of the Shechinah, as it is written (Devarim 4:34) "Or has a god ever done miracles to come and take for himself a nation with trials, with signs, and with wonders, and with war, and with a strong hand, and with an outstretched arm, and with great fears, before your eyes?"

(22) "and with signs": This is the staff, as it is written (Shemoth 4:17) "And this staff you shall take in your hand, wherewith you shall do the signs."

(23) "and with wonders": This is the blood: as it is written (Joel 3:3) "And I will set wonders in heaven and earth: blood and fire and pillars of smoke."

(24) Variantly: "with a strong hand": two. "with an outstretched arm: two. "and with great fears": two. "and with signs": two. "and with wonders": two. These are the ten plagues that the Holy One Blessed be He brought upon the Egyptians.

(25) R. Yehudah would give them (the ten plagues) signs: d tz ach (dam [blood] tzfardea [frogs] kinim [lice]; a d a sh (arov [mixed multitude] dever [pestilence] shchin [boils]); b a cha v (barad [hail] choshech [darkness] arbeh [locusts] v (=b) [(the plague of) bechoroth (the first-born)].