Numbers 18:3-5

Evangelical Heritage Version

³ They will perform the duties for you and for the entire tent. However, they are not to go close to the furnishings in the sanctuary or to the altar, so that they and you will not die. ⁴ They are to join you and perform the duties for the Tent of Meeting, to do all the work at the tent. No unauthorized person is to go near you.

⁵ You are to perform the duties for the sanctuary and for the altar so that there will not be any more wrath on the Israelites.