(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 ה' בְּמֹ֣עֲד֔וֹ בְּת֖וֹךְ בְּנֵ֥י יִשְׂרָאֵֽל׃ (ח) וַיֹּ֥אמֶר אֲלֵהֶ֖ם מֹשֶׁ֑ה עִמְד֣וּ וְאֶשְׁמְעָ֔ה מַה־יְצַוֶּ֥ה ה' לָכֶֽם׃ (פ)
(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.”
Q. If Moshe could tell them everything now why wouldn't he?
A. R' Avraham Schor in the nam of the Pnei Menachem: There is something very powerful about yearning, passion, craving,longing כיסופין תשוקה געגעוין and it has the ability to create a new reality. If it wasn't necessary to teach them the halachos today let the longing build. Moshe taught them all the halachos because of שואלין ודורשין. Agav you see learning the halchos before the chag takes the place or enhances the yearning.
What is the emphasis on moado? Zera Kodesh - They didn't want to loose any part
(ו) גְּדוֹלָה תוֹרָה יוֹתֵר מִן הַכְּהֻנָּה וּמִן הַמַּלְכוּת, שֶׁהַמַּלְכוּת נִקְנֵית בִּשְׁלֹשִׁים מַעֲלוֹת, וְהַכְּהֻנָּה בְּעֶשְׂרִים וְאַרְבַּע, וְהַתּוֹרָה נִקְנֵית בְּאַרְבָּעִים וּשְׁמֹנָה דְבָרִים. וְאֵלוּ הֵן, בְּתַלְמוּד, בִּשְׁמִיעַת הָאֹזֶן, בַּעֲרִיכַת שְׂפָתַיִם, בְּבִינַת הַלֵּב, בְּשִׂכְלוּת הַלֵּב, בְּאֵימָה, בְּיִרְאָה, בַּעֲנָוָה, בְּשִׂמְחָה, בְּטָהֳרָה, בְּשִׁמּוּשׁ חֲכָמִים, בְּדִקְדּוּק חֲבֵרִים, וּבְפִלְפּוּל הַתַּלְמִידִים, בְּיִשּׁוּב, בַּמִּקְרָא, בַּמִּשְׁנָה, בְּמִעוּט סְחוֹרָה, בְּמִעוּט דֶּרֶךְ אֶרֶץ, בְּמִעוּט תַּעֲנוּג, בְּמִעוּט שֵׁינָה, בְּמִעוּט שִׂיחָה, בְּמִעוּט שְׂחוֹק, בְּאֶרֶךְ אַפַּיִם, בְּלֵב טוֹב, בֶּאֱמוּנַת חֲכָמִים, וּבְקַבָּלַת הַיִּסּוּרִין, הַמַּכִּיר אֶת מְקוֹמוֹ, וְהַשָּׂמֵחַ בְּחֶלְקוֹ, וְהָעוֹשֶׂה סְיָג לִדְבָרָיו, וְאֵינוֹ מַחֲזִיק טוֹבָה לְעַצְמוֹ, אָהוּב, אוֹהֵב אֶת הַמָּקוֹם, אוֹהֵב אֶת הַבְּרִיּוֹת, אוֹהֵב אֶת הַצְּדָקוֹת, אוֹהֵב אֶת הַמֵּישָׁרִים, אוֹהֵב אֶת הַתּוֹכָחוֹת, מִתְרַחֵק מִן הַכָּבוֹד, וְלֹא מֵגִיס לִבּוֹ בְתַלְמוּדוֹ, וְאֵינוֹ שָׂמֵחַ בְּהוֹרָאָה, נוֹשֵׂא בְעֹל עִם חֲבֵרוֹ, מַכְרִיעוֹ לְכַף זְכוּת, מַעֲמִידוֹ עַל הָאֱמֶת, וּמַעֲמִידוֹ עַל הַשָּׁלוֹם, מִתְיַשֵּׁב לִבּוֹ בְתַלְמוּדוֹ, שׁוֹאֵל וּמֵשִׁיב, שׁוֹמֵעַ וּמוֹסִיף, הַלּוֹמֵד עַל מְנָת לְלַמֵּד וְהַלּוֹמֵד עַל מְנָת לַעֲשׂוֹת, הַמַּחְכִּים אֶת רַבּוֹ, וְהַמְכַוֵּן אֶת שְׁמוּעָתוֹ, וְהָאוֹמֵר דָּבָר בְּשֵׁם אוֹמְרוֹ, הָא לָמַדְתָּ שֶׁכָּל הָאוֹמֵר דָּבָר בְּשֵׁם אוֹמְרוֹ מֵבִיא גְאֻלָּה לָעוֹלָם, שֶׁנֶּאֱמַר (אסתר ב) וַתֹּאמֶר אֶסְתֵּר לַמֶּלֶךְ בְּשֵׁם מָרְדֳּכָי:
(6) Greater is learning Torah than the priesthood and than royalty, for royalty is acquired by thirty stages, and the priesthood by twenty-four, but the Torah by forty-eight things. By study, Attentive listening, Proper speech, By an understanding heart, By an intelligent heart, By awe, By fear, By humility, By joy, By attending to the sages, By critical give and take with friends, By fine argumentation with disciples, By clear thinking, By study of Scripture, By study of mishnah, By a minimum of sleep, By a minimum of chatter, By a minimum of pleasure, By a minimum of frivolity, By a minimum of preoccupation with worldly matters, By long-suffering, By generosity, By faith in the sages, By acceptance of suffering. [Learning of Torah is also acquired by one] Who recognizes his place, Who rejoices in his portion, Who makes a fence about his words, Who takes no credit for himself, Who is loved, Who loves God, Who loves [his fellow] creatures, Who loves righteous ways, Who loves reproof, Who loves uprightness, Who keeps himself far from honors, Who does not let his heart become swelled on account of his learning, Who does not delight in giving legal decisions, Who shares in the bearing of a burden with his colleague, Who judges with the scales weighted in his favor, Who leads him on to truth, Who leads him on to peace, Who composes himself at his study, Who asks and answers, Who listens [to others], and [himself] adds [to his knowledge], Who learns in order to teach, Who learns in order to practice, Who makes his teacher wiser, Who is exact in what he has learned, And who says a thing in the name of him who said it. Thus you have learned: everyone who says a thing in the name of him who said it, brings deliverance into the world, as it is said: “And Esther told the king in Mordecai’s name” (Esther 2:22).
Rav Gifter The ikur is דבעי למהוי
(א) בחדש הראשון. פָּרָשָׁה שֶׁבְּרֹאשׁ הַסֵּפֶר לֹא נֶאֶמְרָה עַד אִיָּר, לָמַדְתָּ שֶׁאֵין סֵדֶר מֻקְדָּם וּמְאֻחָר בַּתּוֹרָה, וְלָמָּה לֹא פָתַח בְּזוֹ? מִפְּנֵי שֶׁהִיא גְנוּתָן שֶׁל יִשְׂרָאֵל, שֶׁכָּל אַרְבָּעִים שָׁנָה שֶׁהָיוּ יִשְׂרָאֵל בַּמִדְבָּר לֹא הִקְרִיבוּ אֶלָּא פֶּסַח זוֹ בִּלְבָד (ספרי; תוספתא קידושין ל"ח):
(1) בחדש הראשון [AND THE LORD SPAKE UNTO MOSES] IN THE FIRST MONTH — The section which appears at the commencement of this Book was not spoken before Eyar (the second month; cf. Numbers 1:1): you learn, therefore, that there is no “earlier” or “later” (no chronological order) in the Torah. But why, indeed, did not Scripture open the Book with this section? Because it implies something disparaging to Israel (Sifrei Bamidbar 64:1) — that during all the forty years they were in the wilderness they offered only this single Passover sacrifice (Tosafot on Kiddushin 38b s. v. הואיל)
What's the genus they couldn't do mila? Chidushei Harim - if they would have said lama nigara Hashem would have opened a door
Nisivas Shalom What was bothering them they couldn't bring a korban? Pesach has oros they missed. Hashem opened a new door and put the oros of pesach in iyar. A lesson for life if we miss the train Ask hashem to send another