Midras Mazmur 78:16: Mekhilta DeRabbi Yishmael, Midrash Tanchuma & Midrash Tehillim

"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."

An analogy: A man was walking on the road leading his son before him when robbers came to snare him, whereupon he took him and placed him behind him, when a wolf came to snatch him, whereupon he took him and placed him in front — whereupon robbers came before him and wolves behind him — whereupon he took him and placed him on his shoulders — whereupon his son was scorched by the sun — whereupon his father spread his garment over him. He hungered and he fed him; he thirsted and he gave him to drink. Thus, the Holy One Blessed be He, viz. (Hoshea 11:3) "And I pampered Ephraim, taking them on My arms, and they did not know that I had healed them." His son was scorched by the sun, whereupon He spread his garment over him, viz. (Psalms 105:39) "He spread a cloud for a cover and fire to light up the night." "He hungered and He fed him," viz. (Exodus 16:4) "I shall rain down bread for you from heaven." He thirsted and he gave him water to drink, viz. (Psalms 78:11) "And He brought forth nozlim from a rock," "nozlim" being living waters, as in (Song of Songs 4:15) "a garden spring, a well of living waters, and nozlim, etc." and (Mishlei 5:15) "Drink waters from your pit and nozlim from your well."

(Ibid.) "They stood up like a flask": Just as a bound flask neither emits nor admits, so, the spirits of the Egyptians were bound up within them, neither emitting nor admitting — while Israel ate and drank and rejoiced. Sweet water issued forth for them from salted water, viz. (Psalms 78:160) "and He brought forth nozlim from the rock," "nozlim" being living waters, as in (Song of Songs 4:15) "a garden spring, a well of living waters," and (Mishlei 5:15) "Drink water from your pit and nozlim from your well."