Numbers 32:32; Numbers 32:33

32 "We ourselves will cross over armed in the presence of the LORD into the land of Canaan, and the possession of our inheritance shall remain with us across the Jordan."

33 So Moses gave to them, to the sons of Gad and to the sons of Reuben and to the half-tribe of Joseph's son Manasseh, the kingdom of Sihon, king of the Amorites and the kingdom of Og, the king of Bashan, the land with its cities with their territories, the cities of the surrounding land.