Joshua 22:10-11

10When they came to the region of the Jordan which is in the land of Canaan, the sons of Reuben and the sons of Gad and the half-tribe of Manasseh built an altar there by the Jordan, a large altar in appearance.

11And the sons of Israel heard it 1said, “Behold, the sons of Reuben and the sons of Gad and the half-tribe of Manasseh have 2built an altar at the 3frontier of the land of Canaan, in the region of the Jordan, on the side belonging to the sons of Israel.”