Deuteronomy 3:8
Ver. 8. And we took at that time out of the hands of the two kings of the Amorites,.... Sihon king of Heshbon, and Og king of Bashan;
the land that [was] on this side Jordan; where Moses then was, being in the plains of Moab, and was the country beyond Jordan, with respect to the land of Canaan, and when in that:
from the river of Arnon unto Mount Hermon; Arnon was a river which divided Moab and the Amorites, Nu 22:13 and Hermon was a mountain of Gilead, which ended where Lebanon began, and was the northerly border of this country. It was remarkable for the dew that fell on it; See Gill on "Ps 133:3".