and that they should keep the charge of the tabernacle of the congregation, and the charge of the Holy Place, and the charge of Aaron’s sons, their brothers, in the service of the house of Jehovah.
And you, and your sons with you, shall keep your priesthood, in everything that pertains to the altar, and to that inside the veil. And you shall serve; I have given you the priesthood as a service of gift; and the stranger who comes near shall be caused to die.
But he shall serve with his brothers in the tabernacle of the congregation, to keep the charge; only he shall not serve at a service. So you shall do to the Levites concerning their charge.