Joshua 18:15-19

15The southern side began at the outskirts of Kiriath Jearim on the west, and the boundary came out at the spring of the waters of Nephtoah. 16The boundary went down to the foot of the hill facing the Valley of Ben Hinnom, north of the Valley of Rephaim. It continued down the Hinnom Valley along the southern slope of the Jebusite city and so to En Rogel. 17It then curved north, went to En Shemesh, continued to Geliloth, which faces the Pass of Adummim, and ran down to the Stone of Bohan son of Reuben. 18It continued to the northern slope of Beth Arabah and on down into the Arabah. 19It then went to the northern slope of Beth Hoglah and came out at the northern bay of the Dead Sea, at the mouth of the Jordan in the south. This was the southern boundary.