Numbers 1:53

But the Levites shall camp around the tabernacle of the testimony , so that there may be no wrath on the congregation of the people of Israel . And the Levites shall keep guard over the tabernacle of the testimony .

The Levites, however, are to set up their tents around the tabernacle of the covenant law so that my wrath will not fall on the Israelite community. The Levites are to be responsible for the care of the tabernacle of the covenant law.”

But the Levites shall pitch round about the tabernacle of testimony, that there be no wrath upon the congregation of the children of Israel : and the Levites shall keep the charge of the tabernacle of testimony.