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.”
Those who were to camp in front of the tabernacle on the east—in front of the tent of meeting toward the sunrise—were Moses and Aaron and Aaron’s sons, who were to perform the duties of the sanctuary, whatever had to be done for the Israelites, and any outsider who came near was to be put to death.
They shall be worn by Aaron and his sons when they go into the tent of meeting or when they come near the altar to minister in the holy place, so that they do not bring guilt on themselves and die. This shall be a perpetual ordinance for him and for his descendants after him.