Numbers 18:6-8

World English Bible

⁶ Behold, I myself have taken your brothers the Levites from among the children of Israel. They are a gift to you, dedicated to Yahweh, to do the service of the Tent of Meeting. ⁷ You and your sons with you shall keep your priesthood for everything of the altar, and for that within the veil. You shall serve. I give you the service of the priesthood as a gift. The stranger who comes near shall be put to death.”

⁸ Yahweh spoke to Aaron, “Behold, I myself have given you the command of my wave offerings, even all the holy things of the children of Israel. I have given them to you by reason of the anointing, and to your sons, as a portion forever.