Numbers 18:3-4

New King James Version

³ They shall attend to your ^[a]needs and ^(A)all the needs of the tabernacle; ^(B)but they shall not come near the articles of the sanctuary and the altar, ^(C)lest they die—they and you also. ⁴ They shall be joined with you and attend to the needs of the tabernacle of meeting, for all the work of the tabernacle; ^(D)but an outsider shall not come near you.