Joshua 22:10-11

10Reuben, Gad, and half of the tribe of Manasseh came to the region of the Jordan that was still in Canaan. They built an altar by the Jordan River. The altar was very large and highly visible.

11The rest of the Israelites heard about it and said, “See there! Reuben, Gad, and half of the tribe of Manasseh have built an altar at the border of Canaan. It’s in the region near the Jordan River on Israel’s side.”