Deuteronomy 3:8
'And we take, at that time, the land out of the hand of the two kings of the Amorite, which is beyond the Jordan, from the brook Arnon unto mount Hermon;
Joshua 12:2-6
Sihon, king of the Amorite, who is dwelling in Heshbon, ruling from Aroer which is on the border of the brook Arnon, and the middle of the brook, and half of Gilead, and unto Jabok the brook, the border of the Bene-Ammon;
Joshua 13:9-12
from Aroer, which is on the edge of the brook Arnon, and the city which is in the midst of the brook, and all the plain of Medeba unto Dihon,
Numbers 32:33-42
And Moses giveth to them, to the sons of Gad, and to the sons of Reuben, and to the half of the tribe of Manasseh son of Joseph, the kingdom of Sihon king of the Amorite, and the kingdom of Og king of Bashan, the land by its cities, in the borders, the cities of the land round about.