And they departed thence and pitched on the other side of Arnon, which river is in the wilderness, and cometh out of the coasts of the Amorites: for Arnon is the border of Moab, between Moab and the Amorites.

Wherefore it is spoken in the book of the war of the LORD, "Go with a violence, both on the river of Arnon

And Israel smote him with the edge of the sword and conquered his land, from Arnon unto Jabbok: even unto the children of Ammon. For the borders of the children of Ammon are strong.

For Heshbon was the city of Sihon the king of the Amorites which Sihon had fought before with the king of the Moabites, and had taken all his land out of his hand, even unto Arnon.

For there is a fire gone out of Heshbon, and a flame from the city of Sihon, and hath consumed Ar of the Moabites and the men of the hills of Arnon!

And when Balak heard that Balaam was come, he went out against him unto a city of Moab that stood in the border of Arnon, which was the utmost part of his country.