21:13From 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.

21:14Wherefore it is said in the book of the wars of the LORD, What he did in the Red sea, and in the brooks of Arnon,

21:15And at the stream of the brooks that goeth down to the dwelling of Ar, and lieth upon the border of Moab.