Sforno on Exodus 14:16/ספורנו על שמות י״ד:ט״ז

1הרם את מטך, in the direction of the east wind so that it will cause the sea bed to dry out.

2ונטה את ידך על הים, so that the waters will split to the two opposite sides of the shore, similar to what the prophet Elijah would do in Kings II 2,8.