Numbers 3:23-29

23The families of the Gershonites encamped behind the tabernacle westward.

24And the prince of the father's house of the Gershonites was Eliasaph the son of Lael.

25And the charge of the sons of Gershon in the tent of meeting was: the tabernacle and the tent, its covering, and the curtain of the entrance to the tent of meeting.

26And the hangings of the court, and the curtain of the entrance to the court, which surrounds the tabernacle and the altar, and the cords thereof for all its service.

27And of Kohath, the family of the Amramites, and the family of the Izharites, and the family of the Hebronites, and the family of the Uzzielites: these are the families of the Kohathites.

28According to the number of all the males, from a month old and upward, there were eight thousand six hundred, who kept the charge of the sanctuary.

29The families of the sons of Kohath encamped on the side of the tabernacle southward.