Deuteronomy 3:12-13

“And this land, which we possessed at that time, from Aroer, which is by the River Arnon, and half the mountains of Gilead and its cities, I gave to the Reubenites and the Gadites. The rest of Gilead, and all Bashan, the kingdom of Og, I gave to half the tribe of Manasseh. (All the region of Argob, with all Bashan, was called the land of the giants.