וַיֵּֽרָאוּ֙ אֲפִ֣קֵי יָ֔ם יִגָּל֖וּ מֹסְד֣וֹת תֵּבֵ֑ל בְּגַעֲרַ֣ת יְהוָ֔ה מִנִּשְׁמַ֖ת ר֥וּחַ אַפּֽוֹ׃
Rashi on II Samuel
The foundations of the earth were revealed. The deep seas split open. When the Reed Sea split all the world's waters split [as well].
Rashi on II Samuel
By the wind. From the force of wind blowing from His Nostrils.