Exodus 14:21

14:21 Moses stretched out his hand toward the sea, and the Lord drove the sea apart by a strong east wind all that night, and he made the sea into dry land, and the water was divided.

Exodus 14:26

14:26 The Lord said to Moses, “Extend your hand toward the sea, so that the waters may flow back on the Egyptians, on their chariots, and on their horsemen!”