Numbers 4:25-27

25They are to carry the curtains of the Tabernacle, the Tent of Meeting, its covering, the outer covering of porpoise hide, the curtains for the entrance for the Tent of Meeting,

26the curtains surrounding the courtyard and the altar, the curtain for the entrance, the ropes and all the equipment used in its operations. They are to do all that needs to be done with these things.

27The sons of the Gershonites are to do all their tasks, whether carrying or doing other work, according to the word of Aaron and his sons. You are to assign to them all that is their responsibility to carry.