Sforno on Exodus 14:28/ספורנו על שמות י״ד:כ״ח

1וישובו המים in great waves to the newly created trough,

2ויכסו את הרכב, after having shaken off the riders who had been driving these chariots.

3ואת הפרשים, the riders of the cavalry.

4לכל חיל פרעה הבאים אחריהם, the main body of chariots, foot- soldiers, etc, all who were not the elite but who had taken part in this war.