Joshua 15:2-5

2And their south border was from the shore of the salt sea, from the bay that looketh southward:1

3And it went out to the south side to Maalehacrabbim, and passed along to Zin, and ascended on the south side to Kadeshbarnea, and passed along to Hezron, and went up to Adar, and turned about to Karkaa:2

4From there it passed toward Azmon, and went out to the river of Egypt; and the ends of that border were at the sea: this shall be your south border.

5And the east border was the salt sea, even to the end of Jordan. And their border in the north quarter was from the bay of the sea at the mouth of the Jordan: