Deuteronomy 3:8

And we took at that time the land out of the hands of the two kings of the Amorites, who were beyond Jordan, [extending] from the brook of Arnon even unto Aermon.

And we took at that time out of the hand of the two kings of the Amorites the land that was on this side Jordan, from the river of Arnon unto mount Hermon;

We took the land at that time out of the hand of the two kings of the Amorites who were beyond the Jordan, from the valley of the Arnon to Mount Hermon.