CAB(i)
13 And they departed from there and encamped on the other side of the Arnon in the wilderness, the country which extends from the coasts of the Amorites; for the Arnon is the border of Moab, between Moab and the Amorites.
14 Therefore it is said in a book, A war of the Lord has set on fire Zoob, and the brooks of Arnon.
15 And He has appointed brooks to reach Ar to dwell there; and it lies near to the coasts of Moab.