16 "Thus says the whole congregation of the Lord, 'What is this breach of faith that you have committed against the God of Israel in turning away this day from following the Lord by building yourselves an altar this day in rebellion against the Lord? 17 Have we not had enough of the sin at Peor from which even yet we have not cleansed ourselves, and for which there came a plague upon the congregation of the Lord, 18 that you too must turn away this day from following the Lord? And if you too rebel against the Lord today then tomorrow he will be angry with the whole congregation of Israel. 19 But now, if the land of your possession is unclean, pass over into the Lord's land where the Lord's tabernacle stands, and take for yourselves a possession among us. Only do not rebel against the Lord or make us as rebels by building for yourselves an altar other than the altar of the Lord our God. 20 Did not Achan the son of Zerah break faith in the matter of the devoted things, and wrath fell upon all the congregation of Israel? And he did not perish alone for his iniquity.'"
Matthew Henry's Commentary on Joshua 22:16-20
Commentary on Joshua 22:10-20
(Read Joshua 22:10-20)
Here is the care of the separated tribes to keep their hold of Canaan's religion. At first sight it seemed a design to set up an altar against the altar at Shiloh. God is jealous for his own institutions; we should be so too, and afraid of every thing that looks like, or leads to idolatry. Corruptions in religion are best dealt with at first. But their prudence in following up this zealous resolution is no less commendable. Many an unhappy strife would be prevented, or soon made up, by inquiries into the matter of the offence. The remembrance of great sins committed formerly, should engage us to stand on our guard against the beginnings of sin; for the way of sin is down-hill. We are all concerned to reprove our neighbour when he does amiss, lest we suffer sin upon him, Leviticus 19:17. The offer made that they should be welcome to come to the land where the Lord's tabernacle was, and settle there, was in the spirit of true Israelites.