Numbers 4:15

4:15 “When Aaron and his sons have finished covering the sanctuary and all the furnishings of the sanctuary, when the camp is ready to journey, then the Kohathites will come to carry them; but they must not touch any holy thing, or they will die. These are the responsibilities of the Kohathites with the tent of meeting.

Numbers 4:19

4:19 but in order that they will live and not die when they approach the most holy things, do this for them: Aaron and his sons will go in and appoint each man to his service and his responsibility.

Numbers 4:27

4:27 “All the service of the Gershonites, whether carrying loads or for any of their work, will be at the direction of Aaron and his sons. You will assign them all their tasks as their responsibility.

Numbers 4:31-32

4:31 This is what they are responsible to carry as their entire service in the tent of meeting: the frames of the tabernacle, its crossbars, its posts, its sockets, 4:32 and the posts of the surrounding courtyard with their sockets, tent pegs, and ropes, along with all their furnishings and everything for their service. You are to assign by names the items that each man is responsible to carry.

Numbers 4:47

4:47 from thirty years old and upward to fifty years old, everyone who entered to do the work of service and the work of carrying relating to the tent of meeting –

Numbers 4:49

4:49 According to the word of the Lord they were numbered, by the authority of Moses, each according to his service and according to what he was to carry. Thus were they numbered by him, as the Lord had commanded Moses.