Numbers 18:4
And they shall be joined to you, and keep the charge of the tabernacle of the congregation, for all the service of the tabernacle. And a stranger shall not come near you.
Numbers 1:51
And when the tabernacle sets forth, the Levites shall take it down. And when the tabernacle is to be pitched, the Levites shall set it up. And the stranger who comes near shall die.
Numbers 3:10
And you shall appoint Aaron and his sons, and they shall wait on their priest's office. And the stranger who comes near shall be put to death.
1 Samuel 6:19
And He struck the men of Beth-shemesh because they had looked into the ark of Jehovah. He even struck seventy among the people, including fifty chief men. And the people lamented because Jehovah had struck the people with a great slaughter.
2 Samuel 6:6-7
And when they came to Nachon's threshing-floor, Uzzah reached out to the ark of God, and took hold of it; for the oxen upset it.