Joshua 22:13-23

13 And the children of Israel sent Phinehas, the son of Eleazar the priest, to the children of Reuben and the children of Gad and the half-tribe of Manasseh, to the land of Gilead,
14 And with him they sent ten chiefs, one for every tribe of the children of Israel, every one of them the head of his house among the families of Israel.
15 And they came to the children of Reuben and the children of Gad and the half-tribe of Manasseh, to the land of Gilead, and said to them,
16 This is what all the meeting of the people of the Lord has said, What is this wrong which you have done against the God of Israel, turning back this day from the Lord and building an altar for yourselves, and being false to the Lord?
17 Was not the sin of Baal-peor great enough, from which we are not clear even to this day, though punishment came on the people of the Lord,
18 That now you are turned back from the Lord? and, because you are false to him today, tomorrow his wrath will be let loose on all the people of Israel.
19 But if the land you now have is unclean, come over into the Lord's land where his House is, and take up your heritage among us: but do not be false to the Lord and to us by building yourselves an altar in addition to the altar of the Lord our God.
20 Did not Achan, the son of Zerah, do wrong about the cursed thing, causing wrath to come on all the people of Israel? And not on him only came the punishment of death.
21 Then the children of Reuben and the children of Gad and the half-tribe of Manasseh said in answer to the heads of the families of Israel,
22 God, even God the Lord, God, even God the Lord, he sees, and Israel will see--if it is in pride or in sin against the Lord,
23 That we have made ourselves an altar, being false to the Lord, keep us not safe from death this day; and if for the purpose of offering burned offerings on it and meal offerings, or peace-offerings, let the Lord himself send punishment for it;