Midrash su Salmi 74:13

And lift thou up thy rod (Exod. 14:16). Ten miracles were performed in their behalf at the sea. The sea was split asunder for them, and became a kind of vault, as it is said: Thou hast struck through with his own rods the heads, etc. (Hab. 3:14). It was divided into twelve paths, as it is said: And stretch out thy hand over the sea and divide it (Exod. 14:16). It was turned into dry land, as it is said: And the children of Israel walked upon dry land the midst of the sea (ibid., v. 29). It was converted into a kind of clay, as is said: Thou hast trodden the sea with thy horses, the mud of mighty waters (Hab. 3:15). The water was made into pieces, as it is said: Thou didst break the sea into pieces by Thy strength (Ps. 74:13). It was changed into rocks, as is said: Thou didst shatter the heads of the sea monsters in the waters (ibid.). It was torn asunder, as it is said: To him who divided the Red Sea asunder (ibid. 136:13). It was piled up into stacks, as it is said: And with the blast of Thy nostrils, the waters were piled up (Exod. 15:8). It was made into a heap, as is said: Stood upright like a heap (ibid.). Barrels of sweet water flowed out of the salt water for them, and the sea congealed and became like a glass vessel, as it is said: The deeps were congealed (ibid.).

"And you, raise your staff": Ten miracles were performed for Israel at the sea: The waters were split and became like a dome, viz. (Habakkuk 3:14) "You split (the sea) for his tribes; the summit of its scattering raged to scatter me"; the sea became dry land, viz. (Exodus 14:29) "and the children of Israel walked on the dry land"; it became like tar (where the Egyptians trod), viz. (Habakkuk, Ibid. 15) "You led your horses in the sea, in the mire of many waters"; it (the water) became like crumbs, viz. (Psalms 74:13) "You 'crumbed' the sea with Your might"; it became like rocks, viz. (Ibid.) "You broke the heads of serpents (the Egyptians) on the waters"; the sea split into sections, viz. (Ibid. 136:13) "You split the Red Sea into sections," viz. (Ibid. 15:8) "and with the breath of Your nostrils the waters piled up"; they became like a wall, viz. (Ibid.) "the waves stood up as a wall"; He extracted for them sweets from salts, viz. (Psalms 78:16) "and He brought forth streams from a rock and brought down waters as rivers"; He froze the sea for them and it became like vessels of glass, viz. (Exodus 15:8) "The depths froze in the midst of the sea."

33 Another interpretation of (Numb. 21:17), "Then Israel sang": This is one of the three things that Moses said before the Holy One, blessed be He, and He said [back] to him, "You have taught me." He said in front of Him, "Master of the Universe, from where does Israel know what they did (was wrong)? Did they not grow up in Egypt? And all of Egypt are idolaters. And when You gave the Torah, You did not give it to them, and they were also not standing there, as it is stated (Exod. 20:18), 'And the people stood from afar.' And You only gave it to me, as it is stated (Exod. 24:1), 'And He said to Moses, "Ascend to the Lord.'" And when You gave the statements (Ten Commandments), You did not give [them] to them. You did not say, 'I am the Lord, your (plural) God'; but rather I am the Lord, your (singular) God. [Hence] You said it to me. Did I sin?" The Holy One, blessed be He, said to him, "By your life, you have spoken well. You have taught Me! From now on, I will say the expression, 'I am the Lord, your (plural) God.'" The second one is when the Holy One, blessed be He, said ( in Numb. 34:7), "visiting the iniquity of the parents upon the children": Moses said, "Master of the Universe, how many evildoers begat righteous ones; should they be removed by the iniquities of their parents? Terach was an idol-maker, but his son, Abraham, was righteous; so too Hezekiah was righteous, but Ahaz, his father was an evildoer; Josiah was righteous, but Amon, his father, was an evildoer. Is this proper, that the righteous be struck for the iniquities of their parents?" The Holy One, blessed be He, said to him, "Behold, you have taught Me! By your life, I will nullify My words and preserve your words, as it is stated (Deut. 24:15), ‘The parents shall not die for the children, and the children shall not die for the parents'; and it is by your life that I shall write [these things] in your name, as it is stated (II Kings 14:6), 'as it is written in the Torah of Moses, which God commanded ....'" The third one is when the Holy One, blessed be He, said to him, "Make war on Sichon; even if he does not want to engage with you, wage war with him, as stated (Deut. 2:24), 'Get up, go and cross the Arnon .'" But Moses did not do like this. Rather what is written above? "And I sent messengers" (Deut. 2:26). The Holy One, blessed be He, said to him, "By your life, I will nullify My words and preserve your words, as it is stated (Deut. 20:11), 'When you approach a town to attack it, you shall offer it terms of peace.'" Once Sichon did not accept, the Holy One, blessed be He, felled him in front of them, as it is stated (Deut. 20:33), "and we smote him." And not only that, but even [with] those that were hiding themselves in the caves to kill [the Israelites], the Holy One, blessed be He, signaled to the mountain and it crushed them, as it is stated (Ps. 74:13-14), "who smashed the heads of the monsters in the waters. It was You who crushed the heads of Leviathan." A common proverb says [that] if you gave bread to an infant, let his mother know. The Holy One, blessed be He, said, "From where will Israel know the favor I did for them?" What did He do? He distanced the mountains from each other and the streams swept down [the corpses], as it is stated (Numb 21:17), "And the streams poured." And the Israelites passed by and sang song - "then Israel sang" (Numb. 21:17). Israel said, "It is for You to do miracles for us, but it is for us to bless and laud Your name" - "Salvation is to the Lord; upon Your people is Your blessing, Selah" (Ps. 3:9). Upon the waters was it decreed against Moses, so he was not mentioned in the song. Moses said, "Master of the Universe, "I am dying because of them. You gave them the Torah from the wilderness, as it is stated, (Numb. 21:18), 'and from the wilderness, Matanah (which is also the word for gift).' And they possessed (nachalu) it from my hands, as it is stated (Numb. 21:19), 'And from Matanah, Nachliel.'" And from when they possessed it, You decreed death upon me, as it is stated (Numb. 21:19), "and from Nachliel, Bamot" - and from possession comes death (menachal, ba mot). "And from Bamot, Haggai in the field of Moav" (Numb. 21:20), as it is stated (Deut. 34:6), "And He buried him in the valley in the land of Moav." Job said, "He is not partial to princes; the noble are not preferred to the wretched; for all of them are the work of His hands" (Job 34:19).