Their duties involved the ark, the table, the lampstand, the altars, the sanctuary utensils that were used with these, and the screen — and all the work relating to them.
“Eleazar, son of Aaron the priest, has oversight of the lamp oil, the fragrant incense, the daily grain offering, and the anointing oil. He has oversight of the entire tabernacle and everything in it, the holy objects and their utensils.”
“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.
He may assist his brothers to fulfill responsibilities at the tent of meeting, but he must not do the work. This is how you are to deal with the Levites regarding their duties.”