Exodus 14:27-28
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27So Moses stretched forth his hand over the sea, and the sea returned to its wonted flow when the morning appeared; and the Egyptians fled into it, and the LORD routed the Egyptians in the midst of the sea. 28The waters returned and covered the chariots and the horsemen and all the host of Pharaoh that had followed them into the sea; not so much as one of them remained.
Exodus 14:27-28 (RSV)