Numbers 4:21-33

²¹ Then the Lord spoke to Moses, saying: ²² Take a census of the Gershonites also, by their ancestral houses and by their clans; ²³ from thirty years old up to fifty years old you shall enroll them, all who qualify to do work in the tent of meeting. ²⁴ This is the service of the clans of the Gershonites, in serving and bearing burdens: ²⁵ They shall carry the curtains of the tabernacle, and the tent of meeting with its covering, and the outer covering of fine leather that is on top of it, and the screen for the entrance of the tent of meeting, ²⁶ and the hangings of the court, and the screen for the entrance of the gate of the court that is around the tabernacle and the altar, and their cords, and all the equipment for their service; and they shall do all that needs to be done with regard to them. ²⁷ All the service of the Gershonites shall be at the command of Aaron and his sons, in all that they are to carry, and in all that they have to do; and you shall assign to their charge all that they are to carry. ²⁸ This is the service of the clans of the Gershonites relating to the tent of meeting, and their responsibilities are to be under the oversight of Ithamar son of Aaron the priest. ²⁹ As for the Merarites, you shall enroll them by their clans and their ancestral houses; ³⁰ from thirty years old up to fifty years old you shall enroll them, everyone who qualifies to do the work of the tent of meeting. ³¹ This is what they are charged to carry, as the whole of their service in the tent of meeting: the frames of the tabernacle, with its bars, pillars, and bases, ³² and the pillars of the court all around with their bases, pegs, and cords, with all their equipment and all their related service; and you shall assign by name the objects that they are required to carry. ³³ This is the service of the clans of the Merarites, the whole of their service relating to the tent of meeting, under the hand of Ithamar son of Aaron the priest.