Numbers 1:49-51

American Standard Version

⁴⁹ Only the tribe of Levi thou shalt not number, neither shalt thou take the sum of them among the children of Israel; ⁵⁰ but appoint thou the Levites over the tabernacle of the testimony, and over all the furniture thereof, and over all that belongeth to it: they shall bear the tabernacle, and all the furniture thereof; and they shall minister unto it, and shall encamp round about the tabernacle. ⁵¹ And when the tabernacle setteth forward, the Levites shall take it down; and when the tabernacle is to be pitched, the Levites shall set it up: and the stranger that cometh nigh shall be put to death.