Deuteronomy 3:12-20

“So we took possession of this land at that time. I gave the territory from Aroer, which is by the valley of the Arnon, along with half of the hill country of Gilead and its cities to the Reubenites and to the Gadites. The rest of Gilead and all of Bashan, the kingdom of Og, I gave to the half-tribe of Manasseh, that is, all the region of Argob (concerning all Bashan, it is called the land of Rephaim. Jair the son (descendant) of Manasseh took all the region of Argob as far as the border of the Geshurites and the Maacathites, that is Bashan, and called it after his own name, Havvoth (the villages of) Jair, as it is called to this day.) I gave Gilead to Machir [of Manasseh]. To the Reubenites and Gadites I gave the territory from Gilead as far as the Valley of Arnon, with the middle of the Valley as a boundary, and as far as the Jabbok River, the boundary of the sons of Ammon; the Arabah also, with the Jordan as its boundary, from Chinnereth (the Sea of Galilee) as far as the sea of the Arabah, the Salt Sea (Dead Sea), at the foot of the slopes of Pisgah on the east. “Then I commanded you [Reuben, Gad, and the half-tribe of Manasseh] at that time, saying, ‘The LORD your God has given you this land to possess; all you who are brave men shall cross over [the Jordan] armed before your brothers, the sons of Israel. But your wives and your children and your cattle—I know that you have much livestock—shall remain in your cities which I have given you, until the LORD gives rest to your fellow countrymen as [He has] to you, and they also possess the land which the LORD your God has given them beyond the Jordan. Then each of you may return to the land (possession) which I have given to you.’