Numbers 18:7-9

New King James Version

⁷ Therefore ^(A)you and your sons with you shall attend to your priesthood for everything at the altar and ^(B)behind the veil; and you shall serve. I give your priesthood to you as a ^(C)gift for service, but the outsider who comes near shall be put to death.”

Offerings for Support of the Priests

⁸ And the Lord spoke to Aaron: “Here, ^(D)I Myself have also given you ^[a]charge of My heave offerings, all the holy gifts of the children of Israel; I have given them ^(E)as a portion to you and your sons, as an ordinance forever. ⁹ This shall be yours of the most holy things reserved from the fire: every offering of theirs, every ^(F)grain offering and every ^(G)sin offering and every ^(H)trespass offering which they render to Me, shall be most holy for you and your sons.