Joshua 22:19

If the land of your possession be unclean. Rather, be defiled, either by the idolatrous nations around, or by being cut off from the worship of the true God at Shiloh. The only satisfactory explanation of this somewhat difficult passage which has yet been given is that of Masius, who explains it of a possible belief on the part of the two and a half tribes, that they were cut off by Jordan into another land, a land which had no title to the promises and privileges of Israel, no share in the worship of the one true God at Shiloh. If they entertained such an idea, then, however unfounded their conviction, it were better far to abandon the land, how suited to their circumstances soever it might be, and come across the Jordan, and dwell in the midst of their brethren, and under the protection of the tabernacle of the Lord. Beside. That is, separate from, suggesting the idea of an exclusion of those who committed such an act from the worship of the Lord.