And they shall be upon Aaron, and upon his sons, when they come in unto the tabernacle of meeting, or when they come near unto the altar to minister in the holy place; that they bear not iniquity, and die: it shall be a statute forever unto him and his descendants after him.
Therefore you and your sons with you shall keep your priest's office for everything at the altar, and within the veil; and you shall serve: I have given your priest's office unto you as a gift for service: and the stranger that comes near shall be put to death.
But those that encamp before the tabernacle on the east, even before the tabernacle of meeting eastward, shall be Moses, and Aaron and his sons, keeping the charge of the sanctuary to meet the needs of the children of Israel; and the stranger that comes near shall be put to death.