'Brook' in the Bible

The south side southward shall be from Tamar as far as the waters of Meriboth Kadesh, to the brook [of Egypt], to the great sea. This is the south side southward.

By the border of Gad, at the south side southward, the border shall be even from Tamar to the waters of Meribath Kadesh, to the brook [of Egypt], to the great sea.