Numbers 18:4
And they shall be joined unto you, and keep the duties of the tabernacle of meeting, for all the service of the tabernacle: and a stranger shall not come near unto you.
Numbers 1:51
And when the tabernacle moves forward, the Levites shall take it down: and when the tabernacle is to be encamped, the Levites shall set it up: and the stranger that comes near shall be put to death.
Numbers 3:10
And you shall appoint Aaron and his sons, and they shall wait on their priest's office: and the stranger that comes near shall be put to death.
1 Samuel 6:19
And he struck the men of Bethshemesh, because they had looked into the ark of the LORD, even he struck of the people fifty thousand and threescore and ten men: and the people lamented, because the LORD had struck many of the people with a great slaughter.
2 Samuel 6:6-7
And when they came to Nacon's threshingfloor, Uzzah put forth his hand to the ark of God, and took hold of it; for the oxen shook it.