Deuteronomy 3:12-16

“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