Exodus 14:18-21

18And the Egyptians will know that I am the Lord when I have gained my honor because of Pharaoh, his chariots, and his horsemen.”

19The angel of God, who was going before the camp of Israel, moved and went behind them, and the pillar of cloud moved from before them and stood behind them.

20It came between the Egyptian camp and the Israelite camp; it was a dark cloud and it lit up the night so that one camp did not come near the other the whole night.

21Moses 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.