Numbers 21:13

From there they set out and camped on the other side of the Arnon , which is in the wilderness that extends from the border of the Amorites , for the Arnon is the border of Moab , between Moab and the Amorites .

They set out from there and camped alongside the Arnon, which is in the wilderness extending into Amorite territory. The Arnon is the border of Moab, between Moab and the Amorites.

From thence they removed, and pitched on the other side of Arnon, which is in the wilderness that cometh out of the coasts of the Amorites : for Arnon is the border of Moab, between Moab and the Amorites.