13From 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.
14Therefore it is stated in the Book of the Wars of the LORD:
“Waheb in Suphah
and the wadis of the Arnon,
15even the slopes of the wadis
that extend to the site of Ar
and lie along the border of Moab.”
— Numbers 21:13-15