וַיִּרְדְּפ֤וּ מִצְרַ֙יִם֙ וַיָּבֹ֣אוּ אַחֲרֵיהֶ֔ם כֹּ֚ל ס֣וּס פַּרְעֹ֔ה רִכְבּ֖וֹ וּפָרָשָׁ֑יו אֶל־תּ֖וֹךְ הַיָּֽם׃
And the Egyptians pursued, and went in after them into the midst of the sea, all Pharaoh’s horses, his chariots, and his horsemen.
Read kabbalistic (mystical) interpretation of Exodus 14:23: and classical mystical sources.