Moses spoke to Aaron and to his remaining sons, Eleazar and Ithamar, “Take the grain offering that is left from the Lord’s offerings by fire, and eat it unleavened beside the altar, for it is most holy;
When the tabernacle is to set out, the Levites shall take it down, and when the tabernacle is to be pitched, the Levites shall set it up. And any outsider who comes near shall be put to death.
a reminder to the Israelites that no outsider, who is not of the descendants of Aaron, shall approach to offer incense before the Lord, so as not to become like Korah and his congregation, just as the Lord had said to him through Moses.
Then he spoke to Korah and all his congregation, saying, “In the morning the Lord will make known who is his and who is holy and who will be allowed to approach him; the one whom he will choose he will allow to approach 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.”
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.