Numbers 18:4-6

Modern English Version

⁴ They will be joined to you and perform the duties of the tent of meeting, for all the service of the tent; no foreigner will come near you.

⁵ You yourselves will perform the duties of the sanctuary and the duties of the altar, so that wrath may never come upon the children of Israel again. ⁶ I Myself have taken your brothers, the Levites, from among the children of Israel; they are given to you as a gift from the Lord to perform the service of the tent of meeting.