Joshua 13:8-10

8With the other half of the tribe of Manasseh the Reubenites and the Gadites received their inheritance, which Moses gave them, beyond the Jordan eastward, as Moses the servant of the Lord gave them:

9from Aroer, which is on the edge of the Valley of the Arnon, and the city that is in the middle of the valley, and all the tableland of Medeba as far as Dibon;

10and all the cities of Sihon king of the Amorites, who reigned in Heshbon, as far as the boundary of the Ammonites;