And when they cried unto the LORD, he put darkness between you and the Egyptians, and brought the sea upon them, and covered them; and your eyes have seen what I have done in Egypt: and ye dwelt in the wilderness a long season.
When they called to God, He made darkness separate you from the Egyptians and made the sea cover them. Your eyes saw what I did to the Egyptians. You lived in the desert for a long time.