Joshua 13:8-10

8The other half of Manasseh, the Reubenites and the Gadites had received the inheritance that Moses had given them east of the Jordan, as he, the servant of the Lord, had assigned it to them.

9It extended from Aroer on the rim of the Arnon Gorge, and from the town in the middle of the gorge, and included the whole plateau of Medeba as far as Dibon,

10and all the towns of Sihon king of the Amorites, who ruled in Heshbon, out to the border of the Ammonites.