Numbers 4:28

This [is] the service of the families of the sons of Gershon,.... Which they should execute when the camp and tabernacle were in motion:

in the tabernacle of the congregation in the court; where they should take up their burdens, or which lie in things respecting the tabernacle; this was the part they were to be employed in, namely, in taking care of the hangings of the tabernacle, c.

and their charge [shall be] under the hand of Ithamar the son of Aaron the priest the things committed to their care were delivered by him to them, and they were under his inspection and direction.