From there they journeyed, and encamped on the other side of the Arnon, which is in the wilderness that comes out of the border of the Amorites, for the Arnon is the border of Moab, between Moab and the Amorites.

Therefore it is said in the book of the Wars of LORD, Vaheb in Suphah, and the valleys of the Arnon,

And Israel smote him with the edge of the sword, and possessed his land from the Arnon to the Jabbok, even to the sons of Ammon, for the border of the sons of Ammon was strong.

For Heshbon was the city of Sihon the king of the Amorites, who had fought against the former king of Moab, and had taken all his land out of his hand, even to the Arnon.

For a fire has gone out of Heshbon, a flame from the city of Sihon. It has devoured Ar of Moab, the lords of the high places of the Arnon.

And when Balak heard that Balaam came, he went out to meet him to the City of Moab, which is on the border of the Arnon, which is in the outmost part of the border.