Aaron and his sons shall wear them when they go into the tent of meeting, or when they come near the altar to minister in the holy place; or they will bring guilt on themselves and die. This shall be a perpetual ordinance for him and for his descendants after him.
But you and your sons with you shall diligently perform your priestly duties in all that concerns the altar and the area behind the curtain. I give your priesthood as a gift; any outsider who approaches shall be put to death.
But you shall make a register of Aaron and his descendants; it is they who shall attend to the priesthood, and any outsider who comes near shall be put to death.
Those who were to camp in front of the tabernacle on the east—in front of the tent of meeting toward the east—were Moses and Aaron and Aaron's sons, having charge of the rites within the sanctuary, whatever had to be done for the Israelites; and any outsider who came near was to be put to death.