Nebuzaradan, the captain of the guard, took with him as prisoners Seraiah the high priest, Zephaniah the priest of the second rank, and the three chief gatekeepers.
These four clans were responsible for the care of the Ark, the table, the lampstand, the altars, the various articles used in the sanctuary, the inner curtain, and all the equipment related to their use.
“Eleazar son of Aaron the priest will be responsible for the oil of the lampstand, the fragrant incense, the daily grain offering, and the anointing oil. In fact, Eleazar will be responsible for the entire Tabernacle and everything in it, including the sanctuary and its furnishings.”
Aaron and his sons will direct the Gershonites regarding all their duties, whether it involves moving the equipment or doing other work. They must assign the Gershonites responsibility for the loads they are to carry.
After retirement they may assist their fellow Levites by serving as guards at the Tabernacle, but they may not officiate in the service. This is how you must assign duties to the Levites.”