Deuteronomy 3:10-13

10We took all of the cities of the plateau, all of Gilead, and all of Bashan as far as Salcah and Edrei, cities of Og’s kingdom in Bashan.

11(Of the Rephaim only King Og of Bashan was left. His bed was made of iron and was more than 13 feet long and 6 feet wide. It is still in the Ammonite city of Rabbah.)

12At that time we took possession of this land. I gave the tribes of Reuben and Gad the land north of Aroer near the Arnon Valley and half of the mountain region of Gilead with its cities.

13I gave the rest of Gilead and all of Bashan ruled by Og to half of the tribe of Manasseh. (The whole territory of Argob in Bashan used to be called the land of the Rephaim.