Numbers 18:22
The Israelites shall never again approach the Tent of Meeting [the covered sanctuary, the Holy Place, and the Holy of Holies], or they [who do] will incur sin and die.
Leviticus 22:9
Therefore the priests shall observe My ordinance, so that they will not bear sin because of it and die if they profane it; I am the Lord who sanctifies them.
Leviticus 20:20
If there is a man who lies [intimately] with his uncle’s wife, he has uncovered his uncle’s nakedness; they will bear their sin. They will die childless.
Numbers 1:51-52
When the tabernacle is to go forward, the Levites shall take it down; and when the tabernacle is to [be set up for] camp, the Levites shall set it up. But the layman (non-Levite) who approaches the tabernacle shall be put to death.
Numbers 3:10
So you shall appoint Aaron and his sons, and they shall observe and attend to their priesthood; but the layman (non-Levite) who approaches [the holy things] shall be put to death.”
Numbers 3:38
Now those to camp before the tabernacle toward the east, before the Tent of Meeting, toward the sunrise, were to be Moses, and Aaron and his sons, performing the duties of the sanctuary for whatever was required of the Israelites; and the
Numbers 18:7
Therefore you and your sons with you shall attend to your priesthood for everything concerning the altar [of burnt offering and the altar of incense] and [of the Holy of Holies] within the veil, and you are to serve. I am giving you the priesthood as a bestowed service, but the stranger (outsider, layman) who approaches shall be put to death.”