Thematic Bible: Erect a monument to signify the unity of the tribes east of the jordan river with the tribes west of the river

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. 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. 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. read more.
And the children of Israel sent unto the children of Reuben, and to the children of Gad, and to the half tribe of Manasseh, into the land of Gilead, Phinehas the son of Eleazar the priest, And with him ten leaders, of each chief house a leader throughout all the tribes of Israel; and every one was a head of the house of their fathers among the thousands of Israel.