10 When they came to the region about the Jordan, that is in the land of Canaan, the children of Reuben and the children of Gad and the half-tribe of Manasseh built there an altar by the Jordan, a great altar to look at. 11 The children of Israel heard this, “Behold, the children of Reuben and the children of Gad and the half-tribe of Manasseh have built an altar in the forefront of the land of Canaan, in the region about the Jordan, on the side that pertains to the children of Israel.” 12 When the children of Israel heard of it, the whole congregation of the children of Israel gathered themselves together at Shiloh, to go up against them to war. 13 The children of Israel sent to the children of Reuben, and to the children of Gad, and to the half-tribe of Manasseh, into the land of Gilead, Phinehas the son of Eleazar the priest, 14 and with him ten princes, one prince of a fathers’ house for each of the tribes of Israel; and they were everyone of them head of their fathers’ houses among the thousands of Israel. 15 They came to the children of Reuben, and to the children of Gad, and to the half-tribe of Manasseh, to the land of Gilead, and they spoke with them, saying, 16 “Thus says the whole congregation of Yahweh, ‘What trespass is this that you have committed against the God of Israel, to turn away this day from following Yahweh, in that you have built you an altar, to rebel this day against Yahweh? 17 Is the iniquity of Peor too little for us, from which we have not cleansed ourselves to this day, although there came a plague on the congregation of Yahweh, 18 that you must turn away this day from following Yahweh? It will be, seeing that you rebel today against Yahweh, that tomorrow he will be angry with the whole congregation of Israel. 19 However, if the land of your possession is unclean, then pass over to the land of the possession of Yahweh, in which Yahweh’s tabernacle dwells, and take possession among us; but don’t rebel against Yahweh, nor rebel against us, in building an altar other than the altar of Yahweh our God. 20 Didn’t Achan the son of Zerah commit a trespass in the devoted thing, and wrath fell on all the congregation of Israel? That man didn’t perish alone in his iniquity.’”

Matthew Henry's Commentary on Joshua 22:10-20

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.