Numbers 1:53

But let the Levites encamp round about the tabernacle of witness fronting it, and [so] there shall be no sin among the children of Israel; and the Levites themselves shall keep the guard of the tabernacle of witness.

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.

But the Levites shall encamp around the Tabernacle of the Testimony, that there may be no wrath on the congregation of the children of Israel. The Levites shall be responsible for the Tabernacle of the Testimony.”