Numbers 18:23
But the Levites shall do the service of the tabernacle of the testimony, and they shall bear their iniquity by a perpetual statute throughout your ages, and they shall not possess an inheritance among the sons of Israel.
Numbers 3:7
And they shall keep his commandment and the commandment of the whole congregation before the tabernacle of the testimony, to minister in the service of the tabernacle.
Numbers 18:1
And the LORD said unto Aaron, Thou and thy sons and thy father's house with thee shall bear the iniquity of the sanctuary; and thou and thy sons with thee shall bear the iniquity of your priesthood.
Numbers 18:20
And the LORD spoke unto Aaron, Thou shalt have no inheritance in their land, neither shalt thou have any part among them. I am thy part and thine inheritance among the sons of Israel.