The Israelites heard someone say, “Behold, the tribes of Reuben, Gad, and the half-tribe of Manasseh have built an altar by the land of Canaan by the Jordan on the Israelite side.”
Gilead captured the fords of the Jordan River leading to Ephraim. Whenever an Ephraimite fugitive would say, “Let me cross,” the Gileadite men would say to him, “Are you an Ephraimite?” If he said, “No,”
“The whole congregation of the Lord says, ‘What is this trespass you have committed against the God of Israel? Today you have turned from following the Lord by building yourselves an altar to rebel against Him!
If indeed your own land is unclean, then cross over to the land of the Lord where the tabernacle of the Lord stands and take land among us. Yet do not rebel against the Lord or rebel against us by building an altar other than the altar of the Lord our God.
then there will be a place which the Lord your God will choose to cause His name to dwell. There you must bring all that I command you: your burnt offerings, and your sacrifices, your tithes, the offering of your hand, and all your choice vows which you vow to the Lord.