The southern border of Gad will run from Tamar to the waters of Meribath-kadesh, then along the Brook of Egypt and out to the Great Sea.
KJV
And by the border of Gad, at the south side southward, the border shall be even from Tamar [unto] the waters of strife [in] Kadesh, [and] to the river toward the great sea.
ASV
And by the border of Gad, at the south side southward, the border shall be even from Tamar unto the waters of Meribath-kadesh, to the brook of Egypt, unto the great sea.