13 They set out from there and camped on the other side of the Arnon River, in the wilderness that extends from the Amorite border, because the Arnon was the Moabite border between Moab and the Amorites. 14 Therefore it is stated in the Book of the Lord’s Wars:

Waheb in Suphah

and the ravines of the Arnon,

15 even the slopes of the ravines

that extend to the site of Ara

and lie along the border of Moab.