Numbers 18
1 Ref And the Lord said to Aaron, You and your sons and your father's family are to be responsible for all wrongdoing in relation to the holy place: and you and your sons are to be responsible for the errors which come about in your work as priests.
2 Ref Let your brothers, the family of Levi, come near with you, so that they may be joined with you and be your servants: but you and your sons with you are to go in before the ark of witness.
3 Ref They are to do your orders and be responsible for the work of the Tent; but they may not come near the vessels of the holy place or the altar, so that death may not overtake them or you.
4 Ref They are to be joined with you in the care of the Tent of meeting, doing whatever is needed for the Tent: and no one of any other family may come near you.
5 Ref You are to be responsible for the holy place and the altar, so that wrath may never again come on the children of Israel.