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.

So your fathers cried out to the LORD, and He put darkness between you and the Egyptians, over whom He brought the sea and engulfed them. Your very eyes saw what I did to the Egyptians. Then you lived in the wilderness for a long time.