Numbers 18:7-8

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.”

The Portion of the Priests

18:8 The Lord spoke to Aaron, “See, I have given you the responsibility for my raised offerings; I have given all the holy things of the Israelites to you as your priestly portion ¹  and to your sons as a perpetual ordinance.

¹ tn This is an uncommon root. It may be connected to the word “anoint” as here (see RSV). But it may also be seen as an intended parallel to “perpetual due” (see Gen 47:22; Exod 29:28; Lev 6:11 [HT]).