Parallel
Numbers 21:13
Jewish Publication Society 1917 · Berean Standard Bible
From thence they journeyed, and pitched on the other side of the Arnon, which is in the wilderness, that cometh out of the border of the Amorites.—For Arnon is the border of Moab, between Moab and the Amorites;
From there they moved on and camped on the other side of the Arnon, in the wilderness that extends into the Amorite territory. Now the Arnon is the border between the Moabites and the Amorites.