Deuteronomy 3:8

3:8 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;

Deuteronomy 4:48

4:48 From Aroer, which [is] by the bank of the river Arnon, even unto mount Sion, which [is] Hermon,