Midrash sobre Exodo 20:2

“Return, return, O Shulamite; return, return, and we will gaze upon you. Why will you gaze at the Shulamite like at a dance of two companies?” (Song of Songs 7:1)
“Return, return, O Shulamite,” Rabbi Shmuel bar Ḥiyya bar Yudan [said] in the name of Rabbi Ḥanina: Four times “return,” is written here, corresponding to the four kingdoms that rule over Israel. Israel comes under their control unscathed and emerges unscathed. “The Shulamite,” a nation in whose midst the eternal One who lives in peace [shalom] moves about; that is what is written: “I have moved about in a tent and a Tabernacle” (II Samuel 7:6).¹God rested His presence in the Tabernacle in the midst of Israel. The Tabernacle resided in four places in the Land of Israel: Gilgal, Shilo, Nov, and Givon, corresponding to the four times “return” is written here, as though the word Shulamite is written with each one (Maharzu, Bereshit Rabba 66:2).
Another matter, “the Shulamite,” a nation to whom [a blessing] concluding with peace is [recited] each day, just as it says: “And grant you peace [shalom]” (Numbers 6:26). Alternatively, “the Shulamite,” the nation that I am destined to settle in an abode of peace; that is what is written: “My people will live in a peaceful abode…” (Isaiah 32:18). Another matter, “the Shulamite,” the nation to whom I extend peace; that is what is written: “Behold, I will extend peace toward it” (Isaiah 66:12).
Rabbi Elazar bar Rabbi Maron said: A nation that completes [mashlemet] the stability of the world, both in this world and in the World to Come. Rabbi Yehoshua of Sikhnin said in the name of Rabbi Levi: A nation that all the good of the word comes only due to its merit. That is what is written: “God will give you from the dew of the heavens, and from the fat of the earth” (Genesis 27:28); “you,” the matter is dependent upon you and your merit, as it is written: “The Lord will open for you His good storehouse” (Deuteronomy 28:12), the matter is dependent upon you and your merit.
Rabbi Shmuel bar Tanḥum and Rabbi Ḥanan, the son of Rabbi Berekhya from Botzra, [said] in the name of Rabbi Yirmeya: The nation that made peace between Me and My world, as had they not accepted My Torah, I would have returned My world to emptiness and disorder, as Huna said in the name of Rabbi Aḥa: It is written: “The earth and all its inhabitants melt away” (Psalms 75:4). Had Israel not stood before Mount Sinai and said: “Everything that the Lord has said, we will perform and we will heed” (Exodus 24:7), the world would have begun to disintegrate. Who buttressed the world? It is I [anokhi], as it is stated: “I [anokhi] set its pillars firm, Selah” (Psalms 75:4); by the merit of: “I [anokhi] am the Lord your God” (Exodus 20:2), I set its pillars firm.²God caused the pillars of the world to be firm in the merit of the people of Israel accepting the Ten Commandments, the first of which was “I am the Lord your God” (Etz Yosef).

Rabbi Yonah said in the name of Rabbi Levi: Why was the world created with a "bet"? Just as a bet is closed on all sides and open in the front, so you are not permitted to say, "What is beneath? What is above? What came before? What will come after?" Rather from the day the world was created and after. Bar Kappara said: "You have but to inquire about bygone ages that came before you [ever since God created humanity on earth]" (Deuteronomy 4:32). From the moment God created them you may speculate, however you may not speculate on what was before that. ["From one end of Heaven to the other"] on this you may speculate and investigate, but you may not speculate and investigate on what was before. Rabbi Yehudah ben Pazzi explained the Creation story according to Bar Kappara: Why was the world created with a "bet"? To teach you there are two worlds: this world and the world-to-come. Another interpretation: Why with a "bet"? Because it is an expression of "blessing." And why not with an "aleph"? Because it is an expression of "cursing." Another interpretation: Why not with an "aleph"? So as not to give an argument to the heretics, who would say 'how could the world endure since it was created with an expression of curse?' Rather, the Holy One of Blessing said: 'behold I create it with an expression of blessing, and hopefully it will endure.' Another interpretation: Why with a "bet"? The bet has two points, one on its top and one behind it, they say to the "bet": 'who created you?' and he points with his point on top, and says: 'the One Above created me'. 'And what is His name?' and he shows with his point of behind, and says 'Hashem is His name.' Said Rabbi Eleazar Bar Chanina in the name of Rabbi Acha: for 26 generations the "aleph" screamed 'injustice!' in front of the throne of the Holy One of Blessing, saying to Him: 'Master of the Universe! I am the first of the letters and You did not create the world with me!' The Holy One of Blessing said to her [the aleph]: the world and all what it contains were only created due to the merit of Torah, as it is written: "Ad-nai set the earth with wisdom [with understanding He established the heaven]" (Mishlei/Prov 3:19). Tomorrow I come to give Torah at Sinai and I am going to open at first instance only with you, as it says Anochi 'I am Ad-nai your God' (Exodus/Shemot 20:2). Rabbi Hoshaya says: Why is its name "aleph"? Because he agrees from the outset [aleph], as it says " the word which He commanded to a thousand [eleph] generations."

The great Ulla expounded at the door of the prince of the exile: "What does the passage (Ps. 138, 4) All the kings of the earth will give thanks unto Thee, O Lord, when they hear the words of Thy mouth, mean? It is not said the word of Thy mouth, but the words of Thy mouth (in plural). At the time when the Holy One, praised be He, said (Ex. 20, 2) I am the Lord thy God. .... thou shall not make unto thyself, all the nations said: 'He is only instructing, concerning His Own honor. But as soon as He said (Ib., ib. 12) Honor thy father and thy mother, they went back and began to praise Him, even on the first commandments." Raba said: "We infer this from the following (Ps. 119, 160) The beginning of Thy word is truth. Is it only the beginning and not the end of the word? We must therefore say that it means from the end of Thy word it was recognized that even the beginning of Thy word is truth."