Numbers 18:4-6

Living Bible

⁴ No one who is not a member of the tribe of Levi shall assist you in any way. ⁵ Remember, only the priests are to perform the sacred duties within the sanctuary and at the altar. If you follow these instructions, the wrath of God will never again fall upon any of the people of Israel for violating this law. ⁶ I say it again—your kinsmen the Levites are your assistants for the work of the Tabernacle. They are a gift to you from the Lord.