16 "Thus says the whole congregation of the Lord: 'What treachery is this that you have committed against the God of Israel, to turn away this day from following the Lord, in that you have built for yourselves an altar, that you might rebel this day against the Lord? 17 Is the iniquity of Peor not enough for us, from which we are not cleansed until this day, although there was a plague in the congregation of the Lord, 18 but that you must turn away this day from following the Lord? And it shall be, if you rebel today against the Lord, that tomorrow He will be angry with the whole congregation of Israel. 19 Nevertheless, if the land of your possession is unclean, then cross over to the land of the possession of the Lord, where the Lord's tabernacle stands, and take possession among us; but do not rebel against the Lord, nor rebel against us, by building yourselves an altar besides the altar of the Lord our God. 20 Did not Achan the son of Zerah commit a trespass in the accursed thing, and wrath fell on all the congregation of Israel? And that man did not perish alone in 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.