Numbers 4:4, 15

“This is the work of the Kohathites at the tent of meeting: the care of the most holy things.

“After Aaron and his sons have finished covering the holy furnishings and all the holy articles, and when the camp is ready to move, only then are the Kohathites to come and do the carrying. But they must not touch the holy things or they will die. The Kohathites are to carry those things that are in the tent of meeting.