Numbers 1:51
And when the tabernacle sets 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 comes near shall be put to death.
Nave's Topical Index—AKJV

Numbers 4:5-15
And when the camp sets forward, Aaron shall come, and his sons, and they shall take down the covering veil, and cover the ark of testimony with it:
Nave's Topical Index—AKJV