Exodus 14
19 Ref Then the angel of God, who had been before the tents of Israel, took his place at their back; and the pillar of cloud, moving from before them, came to rest at their back:
20 Ref And it came between the army of Egypt and the army of Israel; and there was a dark cloud between them, and they went on through the night; but the one army came no nearer to the other all the night.
21 Ref And when Moses' hand was stretched out over the sea, the Lord with a strong east wind made the sea go back all night, and the waters were parted in two and the sea became dry land.
22 Ref And the children of Israel went through the sea on dry land: and the waters were a wall on their right side and on their left.