Numbers 3:10

3:10 So you are to appoint Aaron and his sons, and they will be responsible for their priesthood; but the unauthorized person who comes near must be put to death.”

Numbers 3:38

3:38 But those who were to camp in front of the tabernacle on the east, in front of the tent of meeting, were Moses, Aaron, and his sons. They were responsible for the needs of the sanctuary and for the needs of the Israelites, but the unauthorized person who approached was to be put to death.

Numbers 18:4-7

18:4 They must join with you, and they will be responsible for the care of the tent of meeting, for all the service of the tent, but no unauthorized person may approach you. 18:5 You will be responsible for the care of the sanctuary and the care of the altar, so that there will be no more wrath on the Israelites. 18:6 I myself have chosen your brothers the Levites from among the Israelites. They are given to you as a gift from the Lord, to perform the duties of the tent of meeting. 18:7 But you and your sons with you are responsible for your priestly duties, for everything at the altar and within the curtain. And you must serve. I give you the priesthood as a gift for service; but the unauthorized person who approaches must be put to death.”

Leviticus 22:10

22:10 “‘No lay person may eat anything holy. Neither a priest’s lodger nor a hired laborer may eat anything holy,

Leviticus 22:2

22:2 “Tell Aaron and his sons that they must deal respectfully with the holy offerings of the Israelites, which they consecrate to me, so that they do not profane my holy name. I am the Lord.

Leviticus 26:18-20

26:18 “‘If, in spite of all these things, you do not obey me, I will discipline you seven times more on account of your sins. 26:19 I will break your strong pride and make your sky like iron and your land like bronze. 26:20 Your strength will be used up in vain, your land will not give its yield, and the trees of the land will not produce their fruit.

Jude 1:11

1:11 Woe to them! For they have traveled down Cain’s path, and because of greed have abandoned themselves to Balaam’s error; hence, they will certainly perish in Korah’s rebellion.