Numbers 4:22-28

22“Take a census of the Gershonites also, by their ancestral families and their clans.

23Register men from thirty years old to fifty years old, everyone who is qualified to perform service, to do work at the tent of meeting.

24This is the service of the Gershonite clans regarding work and transportation duties:

25They are to transport the tabernacle curtains, the tent of meeting with its covering and the covering made of fine leather on top of it, the screen for the entrance to the tent of meeting,

26the hangings of the courtyard, the screen for the entrance at the gate of the courtyard that surrounds the tabernacle and the altar, along with their ropes and all the equipment for their service. They will carry out everything that needs to be done with these items.

27“All the service of the Gershonites, all their transportation duties and all their other work, is to be done at the command of Aaron and his sons; you are to assign to them all that they are responsible to carry.

28This is the service of the Gershonite clans at the tent of meeting, and their duties will be under the direction of Ithamar son of Aaron the priest.