Numbers 21:13-15

Living Bible

¹³ Then they moved to the far side of the Arnon River, near the borders of the Amorites. (The Arnon River is the boundary line between the Moabites and the Amorites. ¹⁴ This fact is mentioned in The Book of the Wars of Jehovah, where it is stated that the valley of the Arnon River and the city of Waheb ¹⁵ lie between the Amorites and the people of Moab.)