16 'Thus said all the company of Jehovah, What 'is' this trespass which ye have trespassed against the God of Israel, to turn back to-day from after Jehovah, by your building for you an altar, for your rebelling to-day against Jehovah? 17 Is the iniquity of Peor little to us, from which we have not been cleansed till this day—and the plague is in the company of Jehovah, 18 that ye turn back to-day from after Jehovah? and it hath been—ye rebel to-day against Jehovah—and to-morrow against all the company of Israel He is wroth. 19 'And surely, if the land of your possession is unclean, pass over for you unto the land of the possession of Jehovah, where the tabernacle of Jehovah hath tabernacled, and have possession in our midst; and against Jehovah rebel not, and against us rebel not, by your building for you an altar, besides the altar of Jehovah our God. 20 Did not Achan son of Zerah commit a trespass in the devoted thing, and on all the company of Israel there was wrath? and he alone expired not 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.