Numbers 18:20-24 - Duties Of The Levites
20 And the LORD spoke unto Aaron, You shall have no inheritance in their land, neither shall you have any part among them: I am your part and your inheritance among the children of Israel.
21 And, behold, I have given the children of Levi all the tenth in Israel for an inheritance, for their service which they serve, even the service of the tabernacle of meeting. 22 Neither must the children of Israel henceforth come near the tabernacle of meeting, lest they bear sin, and die. 23 But the Levites shall do the service of the tabernacle of meeting, and they shall bear their iniquity: it shall be a statute forever throughout your generations, that among the children of Israel they have no inheritance. 24 But the tithes of the children of Israel, which they offer as a heave offering unto the LORD, I have given to the Levites to inherit: therefore I have said unto them, Among the children of Israel they shall have no inheritance.
47 But the Levites after the tribe of their fathers were not numbered among them. 48 For the LORD had spoken unto Moses, saying, 49 Only you shall not number the tribe of Levi, neither take the sum of them among the children of Israel: 50 But you shall 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. 51 And when the tabernacle moves forward, the Levites shall take it down: and when the tabernacle is to be encamped, the Levites shall set it up: and the stranger that comes near shall be put to death.
52 And the children of Israel shall pitch their tents, every man by his own camp, and every man by his own standard, throughout their armies. 53 But the Levites shall encamp 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. 54 And the children of Israel did according to all that the LORD commanded Moses, so did they.