NET

12 Their northern border started at the Jordan, went up to the slope of Jericho on the north, ascended westward to the hill country, and extended to the wilderness of Beth Aven.

Darby

12 And their border on the north side was from the Jordan; and the border went up to the side of Jericho on the north, and went up to the mountain westward; and ended at the wilderness of Beth-Aven;

KJV

12 And their border on the north side was from Jordan; and the border went up to the side of Jericho on the north side, and went up through the mountains westward; and the goings out thereof were at the wilderness of Bethaven.