Numbers

Therefore shall ye abide at the door of the tabernacle of the congregation day and night seven days, and keep the charge of the Lord, that ye die not: for so I am commanded.

But thou shalt appoint the Levites over the tabernacle of testimony, and over all the vessels thereof, and over all things that belong to it: they shall bear the tabernacle, and all the vessels thereof; and they shall minister unto it, and shall encamp round about the tabernacle.

And Aaron shall offer the Levites before the Lord for an offering of the children of Israel, that they may execute the service of the Lord.

And after that shall the Levites go in to do the service of the tabernacle of the congregation: and thou shalt cleanse them, and offer them for an offering.

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.