Numbers 1:51-53

New Catholic Bible

⁵¹ When the tabernacle is to be moved, the Levites will take it down. When it is to be erected, the Levites will set it up. Anyone else who approaches it must be put to death.

⁵² “Each of the Israelites will pitch his tent within his own camp, alongside his own standard, each in his own company, ⁵³ but the Levites will camp around the tabernacle of the Testimony so that no wrath come upon the community of the people of Israel. The Levites will keep guard over the tabernacle of the Testimony.”