Midras Mazmur 106:22: Mekhilta DeRabbi Yishmael & Pirkei DeRabbi Eliezer

Variantly: "Who is like You among the mighty, O L–rd": Who is like You in the miracles and wonders that You wrought for us upon the sea, viz. (Psalms 106:22) "… awesome deeds upon the Red Sea" — (Ibid. 9) "He roared at the Red Sea and it dried up."

The Holy One, blessed be He, said to Moses: Israel has forgotten the might of My power, which I wrought for them in Egypt and at the Reed Sea, and they have made an idol for themselves. He said to Moses: Go, get thee down from thy greatness. Moses spake before the Holy One, blessed be He: Sovereign of all the worlds! Whilst Israel had not yet sinned before Thee, Thou didst call them "My people," as it is said, "And I will bring forth my hosts, my people" (Ex. 7:4). Now that they have sinned before Thee, Thou sayest unto me, "Go, get thee down, for thy people have corrupted themselves" (Ex. 32:7). They are Thy people, and Thine inheritance, as it is said, "Yet they are thy people and thine inheritance" (Deut. 9:29).