Joshua 18:13-14

From there the border continued to Luz, to the side of Luz (that is, Bethel) southward; and the border went down to Ataroth-addar, near the hill which lies on the south of lower Beth-horon. The border extended from there and turned round on the west side southward, from the hill which lies before Beth-horon southward; and it ended at Kiriath-baal (that is, Kiriath-jearim), a city of the sons of Judah. This was the west side.