John Wesley on Joshua 22:19

Be unclean - If you apprehend it to be so for want of the tabernacle and altar there; as the following words imply: if you now repent of your former choice in preferring the worldly commodities of that country before the advantage of God's presence, and more frequent opportunities of his service. Among us - We will readily resign part of our possessions to you for the prevention of this sin and mischief. Against us - For all the tribes were united in one body politick, and made one commonwealth, and one church; and each tribe was subject to the laws and commands of the whole society, and of the chief ruler or rulers thereof; so its disobedience to their just commands was properly rebellion against them.