The border went over from there toward Luz, to the side of Luz (which is Bethel) southward; and the border descended to Ataroth Addar, near the hill that lies on the south side of Lower Beth Horon.
Joshua 18:13
Surrounding context
18:12 Their border on the north side began at the Jordan, and the border went up to the side of Jericho on the north, and went up through the mountains westward; it ended at the Wilderness of Beth Aven.
18:13 The border went over from there toward Luz, to the side of Luz (which is Bethel) southward; and the border descended to Ataroth Addar, near the hill that lies on the south side of Lower Beth Horon.
18:14 Then the border extended around the west side to the south, from the hill that lies before Beth Horon southward; and it ended at Kirjath Baal (which is Kirjath Jearim), a city of the children of Judah. This was the west side.