Joshua 22:9-12 - Eastern Tribes Build An Altar

⁹ And the children of Reuben and the children of Gad and the half tribe of Manasseh returned, and departed from the children of Israel out of Shiloh, which is in the land of Canaan, to go unto the country of Gilead, to the land of their possession, which they had possessed, according to the word of the LORD by the hand of Moses. ¹⁰ And when they came unto the borders of Jordan, that are in the land of Canaan, the children of Reuben and the children of Gad and the half tribe of Manasseh built there an altar by the Jordan, a great altar to see.

¹¹ And the children of Israel were told, Behold, the children of Reuben and the children of Gad and the half tribe of Manasseh have built an altar near the border of the land of Canaan, in the area of the Jordan, on the side of the children of Israel. ¹² And when the children of Israel heard of it, the whole congregation of the children of Israel gathered themselves together at Shiloh, to go up to war against them.