Midrash su Salmi 77:18

Rabbi Eliezer interpreted the verse regarding the redemption from Egypt. Just as this lily, when it is situated among the thorns, is difficult for its owner to pluck it, so too, the redemption of Israel was difficult for the Holy One blessed be He. That is what is written: “Or has a god sought to come and take for himself a nation from the midst of a nation…?” (Deuteronomy 4:34). Rabbi Yehoshua said in the name of Rabbi Ḥanan: It is not written here: “A nation from the midst of a people,” or “a people from the midst of a nation,” but rather, “a nation from the midst of a nation,” as these were uncircumcised and those were uncircumcised, these grew their hairlocks and those grew their hairlocks,¹⁶The reference is a to a hairstyle that was common among gentiles, known as belorit, in which they would grow a long lock of hair from the backs of their heads. these wore garments of diverse kinds and those wore garments of diverse kinds.¹⁷The Israelites and Egyptians appeared quite similar to each other in appearance and in lifestyle. If so, the attribute of justice would never have allowed Israel to be redeemed from Egypt. Rabbi Shmuel bar Naḥman said: Had the Holy One blessed be He not bound Himself with an oath, Israel would never have been redeemed from Egypt. That is what is written: “Therefore, say to the children of Israel: I am the Lord and I will take you out from under the burdens of Egypt” (Exodus 6:6). “Therefore” is nothing other than an oath, just as it says: “Therefore, I have taken an oath to the house of Eli” (I Samuel 3:14). Rabbi Berekhya said: “With Your arm, You redeemed Your people” (Psalms 77:16), by force.¹⁸You overcame the attribute of justice by force.
Rabbi Yudan said: From “to come and take for himself a nation” until “awesome deeds” (Deuteronomy 4:34) there are seventy-two letters.¹⁹In the Hebrew text. If a person will tell you seventy-five, say to him: Exclude from them the second [mention of the word] nation [goy], which is not included in the tally. Rabbi Avin said: He redeemed them with His name, as the name of the Holy One blessed be He consists of seventy-two letters. ²⁰The second nation is Egypt, which is not included in the name of God.

Over against them are the Ophanim (Wheels) and the Whirling Wheels of the Chariot, and when He looketh upon the earth His chariots are upon the Ophanim, and owing to the noise caused by the whirling wheels of the Chariot—lightnings and thunder go forth into the world. When He dwells in heaven He rideth upon a swift cloud. When He hastens He flies upon the wings of the wind, as it is said, "And he rode upon a cherub, and did fly; yea, he flew swiftly upon the wings of the wind" (Ps. 18:10).