Numbers 18:3-8

Rotherham(i) 3 So shall they keep thy charge, and the charge of all the tent,––only, unto the vessels of the sanctuary, and unto the altar, shall they not come near, lest they die––both they, and ye. 4 So shall they be joined unto thee, and shall keep the charge of the tent of meeting, as to all the laborious work of the tent,––but, a stranger, shall not come near unto you. 5 So shall ye keep the charge of the sanctuary, and the charge of the altar,––that there no more, be wrath against the sons of Israel. 6 I, therefore, lo! I have taken your brethren the Levites, out of the midst of the sons of Israel,––unto you, as a gift, are they given, unto Yahweh, to do the laborious work of the tent of meeting. 7 But, thou and thy sons with thee, shall keep the charge of your priesthood, as to every matter of the altar, and as to the interior of the veil, and shall do the laborious work,––as a laborious service of gifts, do I give your priesthood, and, the stranger who cometh near, shall be put to death.
8 And Yahweh spake unto Aaron, I, therefore, lo! I have given unto thee, the charge of my heave–offerings,––as to all the hallowed things of the sons of Israel––unto thee, have I given them, as pertaining to the anointing, and unto thy sons, for a statute age–abiding.