Joshua 18:13-14

18:13 It then crossed from there to Luz, to the slope of Luz to the south (that is, Bethel), and descended to Ataroth Addar located on the hill that is south of lower Beth Horon. 18:14 It then turned on the west side southward from the hill near Beth Horon on the south and extended to Kiriath Baal (that is, Kiriath Jearim), a city belonging to the tribe of Judah. This is the western border.