Exodus 14:19-22

19And the angel of God, who went before the camp of Israel, removed and went behind them; and the pillar of cloud removed from before them, and stood behind them: 20and it came between the camp of Egypt and the camp of Israel; and there was the cloud and the darkness, yet gave it light by night: and the one came not near the other all the night.

21And Moses stretched out his hand over the sea; and Jehovah caused the sea to go back by a strong east wind all the night, and made the sea dry land, and the waters were divided. 22And the children of Israel went into the midst of the sea upon the dry ground: and the waters were a wall unto them on their right hand, and on their left.