וַאֲשֶׁ֣ר עָשָׂה֩ לְחֵ֨יל מִצְרַ֜יִם לְסוּסָ֣יו וּלְרִכְבּ֗וֹ אֲשֶׁ֨ר הֵצִ֜יף אֶת־מֵ֤י יַם־סוּף֙ עַל־פְּנֵיהֶ֔ם בְּרָדְפָ֖ם אַחֲרֵיכֶ֑ם וַיְאַבְּדֵ֣ם יְהוָ֔ה עַ֖ד הַיּ֥וֹם הַזֶּֽה׃
און װאָס ער האָט געטאָן צו דעם חיל פֿון מִצרַיִם, צו זײַנע פֿערד און צו זײַנע רײַטװעגן, װאָס ער האָט געמאַכט פֿלײצן איבער זײ די װאַסערן פֿון ים-סוף, װען זײ האָבן אײַך נאָכגעיאָגט, און גאָט האָט זײ אונטערגעבראַכט ביז אױף הײַנטיקן טאָג;
Chizkuni
ואשר עשה לחיל מצרים, “and what He did to the army of Egypt;” [Moses adds in verse 6, that G-d had killed Datan and Aviram. These two actions do not appear to be related to one another, neither in the manner in which either party met its death, nor in the quantity of people involved in each action.] Why did Moses treat them in such a manner? He wished to demonstrate how both the earth and the ocean collaborated with G-d. The Egyptians did not drown in the regular manner but the waves piled up upon them forcing them below. [In the case of Datan and Aviram, though they stood far away from Korach, they were also swallowed by the earth which strained to carry out what it perceived to be G-d’s will.] Onkelos pays tribute to the astuteness with which nature cooperated with G-d, i.e. חכימא מיא, “the waters acted with wisdom.”
Ramban
HOW HE MADE THE WATER OF THE RED SEA TO OVERFLOW THEM THAT PURSUED AFTER YOU, AND HOW THE ETERNAL HATH DESTROYED THEM UNTO THIS DAY. I have not understood the meaning of the phrase, unto this day, for all who die in the sea are destroyed forever [thus the expression unto this day would appear redundant]! Possibly it refers back to the expression unto their horses, and to their chariots, that for the entire generation [following the exodus] horses and chariots remained [irretrievably] lost, since Pharaoh had taken along with him all the horses, chariots, and horsemen that were in Egypt and they were all destroyed, and henceforth it was a lowly kingdom294Ezekiel 17:14. without the chariot and horse, the army and the power.295Isaiah 43:17. And Rabbi Abraham ibn Ezra commented that [the expression unto this day] denotes that their children afterwards never rose in their stead to resemble them. Rabbi Abraham’s intent is to state that G-d [not only] destroyed the pursuers in the sea, [but] in Egypt [proper] He destroyed the seed [of the pursuers], not leaving them a name and remnant,296Ibid., 14:22. since they were the most wicked of all the Egyptians to pursue after the redeemed of the Eternal.297Ibid., 62:12. But this is not mentioned in the Torah!
Ibn Ezra
made flow [Hebrew: heṣif] from “water flowed [Hebrew: ṣafu] over my head” [Lamentations 3: 54].