Numbers 18:5-7

New King James Version

⁵ And you shall attend to ^(A)the duties of the sanctuary and the duties of the altar, ^(B)that there may be no more wrath on the children of Israel. ⁶ Behold, I Myself have ^(C)taken your brethren the Levites from among the children of Israel; ^(D)they are a gift to you, given by the Lord, to do the work of the tabernacle of meeting. ⁷ Therefore ^(E)you and your sons with you shall attend to your priesthood for everything at the altar and ^(F)behind the veil; and you shall serve. I give your priesthood to you as a ^(G)gift for service, but the outsider who comes near shall be put to death.”