Numbers 21:13-15 ▼

13 Moving on from there, they encamped on the other side of the Arnon, in the wilderness that extends from the territory of the Amorites; for the Arnon forms Moab’s boundary, between Moab and the Amorites.

14 Hence it is said in the “Book of the Wars of the LORD”: “Waheb in Suphah and the wadies,

15 Arnon and the wadi gorges That reach back toward the site of Ar and lean against the border of Moab.”