Numbers 18:3
And they shall keep thy charge, and the charge of all the tabernacle; only they shall not come near the holy vessels or the altar, that neither they, nor ye also, die.
Numbers 4:15
And when Aaron and his sons have made an end of covering the sanctuary and all the vessels of the sanctuary when the camp is to set forward, after that, the sons of Kohath shall come to bear it, but they shall not touch any holy thing, lest they die. These things are the burden of the sons of Kohath in the tabernacle of the testimony.
Numbers 3:25
And the charge of the sons of Gershon in the tabernacle of the testimony shall be the tabernacle and the tent, the covering thereof, and the hanging for the door of the tabernacle of the testimony,
Numbers 3:31
And their charge shall be the ark and the table and the lampstand and the altars and the vessels of the sanctuary with which they minister, and the veil, with all its service.
Numbers 3:36
And under the custody and charge of the sons of Merari shall be the boards of the tabernacle and the bars thereof and the pillars thereof and the sockets thereof and all the instruments thereof, with all its service,
Numbers 4:19-20
but thus do unto them that they may live, and not die, when they approach unto the holy of holies: Aaron and his sons shall come and place each one of them in his ministry and to his burden.
Numbers 16:40
to be a memorial unto the sons of Israel, that no stranger who is not of the seed of Aaron come near to offer incense before the LORD, that he not be as Korah and as his company, as the LORD said to him by the hand of Moses.
Numbers 1:51
And when the tabernacle departs, the Levites shall take it down; and when the tabernacle is to be pitched, the Levites shall set it up; and the stranger that comes near shall be put to death.
Numbers 18:7
Therefore thou and thy sons with thee shall keep your priesthood for every thing of the altar and within the veil, and ye shall minister; for I have given the service of your priesthood as a gift, and the stranger that comes near shall die.