Numbers 18:4-6

International Standard Version

⁴ They are to join you to maintain services related to the Tent of Meeting, for all the responsibilities involved with the tent. But no unauthorized person^[a] is to approach you. ⁵ Take care of the sanctuary and the services of the altar so that there won’t be any more wrath on the Israelis. ⁶ Notice that I’ve taken your brothers, the descendants of Levi, from among the Israelis, giving them to you as a gift from the Lord to perform the service of the Tent of Meeting.