Rav Nachman said: Moshe established for Am Yisrael the bracha of "hazan". When they entered Israel, Yehoshua established for them the bracha of "haaretz". Once they were already in Israel, David and Shlomo established the bracha of "boneh yerushalyaim". David established [the part] "al Yisrael Amecha veal Yerushalayim Irecha", and Shlomo established "al habayit hagadol vehakadosh". [The bracha of] "Hatov Vehameitiv" was established in Yavneh for the dead of Beitar, since Rav Mattana said, "On the day that they were allowed to bury the dead at Beitar, they established "Hatov Vehameitiv"- "Hatov", since their bodies did not decay, "vehameitiv" since they were allowed to be buried.
Our Rabbis taught: From where do we know in the Torah to say Birkat HaMazon? Since it says, "And you shall eat and be satisified, and you shall bless..."
(ג) וַֽיְעַנְּךָ֮ וַיַּרְעִבֶךָ֒ וַיַּֽאֲכִֽלְךָ֤ אֶת הַמָּן֙ אֲשֶׁ֣ר לֹא־יָדַ֔עְתָּ וְלֹ֥א יָדְע֖וּן אֲבֹתֶ֑יךָ לְמַ֣עַן הוֹדִֽעֲךָ֗ כִּ֠י לֹ֣א עַל־הַלֶּ֤חֶם לְבַדּוֹ֙ יִחְיֶ֣ה הָֽאָדָ֔ם כִּ֛י עַל־כָּל־מוֹצָ֥א פִֽי־יְהוָ֖ה יִחְיֶ֥ה הָאָדָֽם׃ ... (י) וְאָכַלְתָּ֖ וְשָׂבָ֑עְתָּ וּבֵֽרַכְתָּ֙ אֶת־יְהוָ֣ה אֱלֹהֶ֔יךָ עַל־הָאָ֥רֶץ הַטֹּבָ֖ה אֲשֶׁ֥ר נָֽתַן־לָֽךְ׃ (יא) הִשָּׁ֣מֶר לְךָ֔ פֶּן־תִּשְׁכַּ֖ח אֶת־יְהוָ֣ה אֱלֹהֶ֑יךָ לְבִלְתִּ֨י שְׁמֹ֤ר מִצְוֺתָיו֙ וּמִשְׁפָּטָ֣יו וְחֻקֹּתָ֔יו אֲשֶׁ֛ר אָנֹכִ֥י מְצַוְּךָ֖ הַיּֽוֹם׃ (יב) פֶּן־תֹּאכַ֖ל וְשָׂבָ֑עְתָּ וּבָתִּ֥ים טוֹבִ֛ים תִּבְנֶ֖ה וְיָשָֽׁבְתָּ׃ (יג) וּבְקָֽרְךָ֤ וְצֹֽאנְךָ֙ יִרְבְּיֻ֔ן וְכֶ֥סֶף וְזָהָ֖ב יִרְבֶּה־לָּ֑ךְ וְכֹ֥ל אֲשֶׁר־לְךָ֖ יִרְבֶּֽה׃ (יד) וְרָ֖ם לְבָבֶ֑ךָ וְשָֽׁכַחְתָּ֙ אֶת־יְהוָ֣ה אֱלֹהֶ֔יךָ הַמּוֹצִיאֲךָ֛ מֵאֶ֥רֶץ מִצְרַ֖יִם מִבֵּ֥ית עֲבָדִֽים׃ (טו) הַמּוֹלִ֨יכֲךָ֜ בַּמִּדְבָּ֣ר ׀ הַגָּדֹ֣ל וְהַנּוֹרָ֗א נָחָ֤שׁ ׀ שָׂרָף֙ וְעַקְרָ֔ב וְצִמָּא֖וֹן אֲשֶׁ֣ר אֵֽין־מָ֑יִם הַמּוֹצִ֤יא לְךָ֙ מַ֔יִם מִצּ֖וּר הַֽחַלָּמִֽישׁ׃ (טז) הַמַּֽאֲכִ֨לְךָ֥ מָן֙ בַּמִּדְבָּ֔ר אֲשֶׁ֥ר לֹא־יָדְע֖וּן אֲבֹתֶ֑יךָ לְמַ֣עַן עַנֹּֽתְךָ֗ וּלְמַ֙עַן֙ נַסֹּתֶ֔ךָ לְהֵיטִֽבְךָ֖ בְּאַחֲרִיתֶֽךָ׃ (יז) וְאָמַרְתָּ֖ בִּלְבָבֶ֑ךָ כֹּחִי֙ וְעֹ֣צֶם יָדִ֔י עָ֥שָׂה לִ֖י אֶת־הַחַ֥יִל הַזֶּֽה׃ (יח) וְזָֽכַרְתָּ֙ אֶת־יְהוָ֣ה אֱלֹהֶ֔יךָ כִּ֣י ה֗וּא הַנֹּתֵ֥ן לְךָ֛ כֹּ֖חַ לַעֲשׂ֣וֹת חָ֑יִל לְמַ֨עַן הָקִ֧ים אֶת־בְּרִית֛וֹ אֲשֶׁר־נִשְׁבַּ֥ע לַאֲבֹתֶ֖יךָ כַּיּ֥וֹם הַזֶּֽה׃ (פ)
(3) He subjected you to the hardship of hunger and then gave you manna to eat, which neither you nor your fathers had ever known, in order to teach you that man does not live on bread alone, but that man may live on anything that the LORD decrees. ... (10) When you have eaten and are satisfied, you shall thanks to Hashem your God for the good land which He has given you. (11) Take care lest you forget the LORD your God and fail to keep His commandments, His rules, and His laws, which I command you today. (12) When you have eaten your fill, and have built fine houses to live in, (13) and your herds and flocks have multiplied, and your silver and gold have increased, and everything you own has prospered, (14) beware lest your heart grow haughty and you forget the LORD your God—who freed you from the land of Egypt, the house of bondage; (15) who led you through the great and terrible desert with its fiery serpents and scorpions, a parched land with no water in it, who brought forth water for you from the flinty rock; (16) who fed you in the wilderness with manna, which your fathers had never known, in order to test you by hardships only to benefit you in the end— (17) and you say to yourselves, “My own power and the might of my own hand have won this wealth for me.” (18) Remember that it is the LORD your God who gives you the power to get wealth, in fulfillment of the covenant that He made on oath with your fathers, as is still the case.
(18) Since Avraham is to become a great and populous nation and all the nations of the earth are to bless themselves by him? (19) For I have singled him out, that he may instruct his children and his posterity to keep the way of Hashem by doing what is just and right, in order that the LORD may bring about for Abraham what He has promised him.”
(5) It is not because of your virtues and your rectitude that you will be able to possess their country; but it is because of their wickedness that the LORD your God is dispossessing those nations before you, and in order to fulfill the oath that the LORD made to your fathers, Abraham, Isaac, and Jacob.
(18) Do what is right and good in the sight of the LORD, that it may go well with you and that you may be able to possess the good land that the LORD your God promised on oath to your fathers.
(א) הֵ֤ן עַבְדִּי֙ אֶתְמָךְ־בּ֔וֹ בְּחִירִ֖י רָצְתָ֣ה נַפְשִׁ֑י נָתַ֤תִּי רוּחִי֙ עָלָ֔יו מִשְׁפָּ֖ט לַגּוֹיִ֥ם יוֹצִֽיא׃ (ב) לֹ֥א יִצְעַ֖ק וְלֹ֣א יִשָּׂ֑א וְלֹֽא־יַשְׁמִ֥יעַ בַּח֖וּץ קוֹלֽוֹ׃ (ג) קָנֶ֤ה רָצוּץ֙ לֹ֣א יִשְׁבּ֔וֹר וּפִשְׁתָּ֥ה כֵהָ֖ה לֹ֣א יְכַבֶּ֑נָּה לֶאֱמֶ֖ת יוֹצִ֥יא מִשְׁפָּֽט׃ ... (ו) אֲנִ֧י יְהוָ֛ה קְרָאתִ֥יךָֽ בְצֶ֖דֶק וְאַחְזֵ֣ק בְּיָדֶ֑ךָ וְאֶצָּרְךָ֗ וְאֶתֶּנְךָ֛ לִבְרִ֥ית עָ֖ם לְא֥וֹר גּוֹיִֽם׃
(1) This is My servant, whom I uphold, My chosen one, in whom I delight. I have put My spirit upon him, He shall bring out justice to the nations. (2) He shall not cry out or shout aloud, Or make his voice heard in the streets. (3) He shall not break even a bruised reed, Or snuff out even a dim wick. He shall bring forth the true way. ... (6) I the LORD, in righteousness, have summoned you, and I have grasped you by the hand. I created you, and gave to you a covenant: a people to be a light of nations.
(ט) וּֽבְקֻצְרְכֶם֙ אֶת־קְצִ֣יר אַרְצְכֶ֔ם לֹ֧א תְכַלֶּ֛ה פְּאַ֥ת שָׂדְךָ֖ לִקְצֹ֑ר וְלֶ֥קֶט קְצִֽירְךָ֖ לֹ֥א תְלַקֵּֽט׃ (י) וְכַרְמְךָ֙ לֹ֣א תְעוֹלֵ֔ל וּפֶ֥רֶט כַּרְמְךָ֖ לֹ֣א תְלַקֵּ֑ט לֶֽעָנִ֤י וְלַגֵּר֙ תַּעֲזֹ֣ב אֹתָ֔ם אֲנִ֖י יְהוָ֥ה אֱלֹהֵיכֶֽם׃
(9) When you reap the harvest of your land, you shall not reap all the way to the edges of your field, or gather the gleanings of your harvest. (10) You shall not pick your vineyard bare, or gather the fallen fruit of your vineyard; you shall leave them for the poor and the stranger: I the LORD am your God.
(יד) כָּל מַתְּנוֹת הָעֲנִיִּים הָאֵלּוּ אֵינָן נוֹהֲגוֹת מִן הַתּוֹרָה אֶלָּא בְּאֶרֶץ יִשְׂרָאֵל כִּתְרוּמוֹת וּמַעַשְׂרוֹת. הֲרֵי הַכָּתוּב אוֹמֵר (ויקרא יט ט) (ויקרא כג כב) "וּבְקֻצְרְכֶם אֶת קְצִיר אַרְצְכֶם" (דברים כד יט) "כִּי תִקְצֹר קְצִירְךָ בְשָׂדֶךָ". וּכְבָר נִתְפָּרֵשׁ בַּגְּמָרָא שֶׁהַפֵּאָה נוֹהֶגֶת בְּחוּצָה לָאָרֶץ מִדִּבְרֵיהֶם. וְיֵרָאֶה לִי שֶׁהוּא הַדִּין לִשְׁאָר מַתְּנוֹת עֲנִיִּים אֵלּוּ שֶׁכֻּלָּן נוֹהֲגוֹת בְּחוּצָה לָאָרֶץ מִדִּבְרֵיהֶם:
(14) All of these gifts for the poor as they are in the Torah only apply to the Land of Israel, like gift offerings and tithes. Thus Scripture says, (Lev. 19:9, 23:22) When you reap the harvest of your land, [and] (Deut. 24:19) When you reap the harvest in your field. [But] it has already been explained in the Talmud that the category of péah applies outside of the Land of Israel from rabbinic law.