The Lord commands a census of the sons of Kohath, from thirty to fifty years old, those who can serve in the tent of meeting. Their work concerns the most holy things. When the camp moves, Aaron and his sons will go in first and cover the ark of the testimony with the veil and with coverings, and then cover the table of the bread of the Presence, the lampstand, the altars and the utensils of the sanctuary. Only after that may the Kohathites lift them by their poles to carry them, without touching what is holy, or they would die. Eleazar, Aaron's son, will oversee the oil, the incense and the whole tabernacle. The Lord warns that the Kohathites must not look at the holy things even for a moment, and that Aaron and his sons must assign each man his task.
Next the Gershonites are assigned to carry the curtains of the tabernacle, the tent of meeting with its coverings, the screen at the entrance and the hangings of the courtyard, under the direction of Ithamar, Aaron's son. The Merarites are given the frame itself: the boards, bars, pillars and bases, and the pegs with their cords, also under Ithamar's supervision.
Moses, Aaron and the leaders count each clan, and the totals of men from thirty to fifty years old fit for service add up to 8,580. The chapter ends by saying they were counted as the Lord commanded, each with his task and his burden.