Numbers 3:22-29
English Standard Version
Chapter 3
22Their listing according to the number of all the males from a month old and upward was 7,500. 23The clans of the Gershonites were to camp behind the tabernacle on the west, 24with Eliasaph, the son of Lael as chief of the fathers ' house of the Gershonites. 25And the guard duty of the sons of Gershon in the tent of meeting involved the tabernacle, the tent with its covering, the screen for the entrance of the tent of meeting, 26the hangings of the court, the screen for the door of the court that is around the tabernacle and the altar, and its cords — all the service connected with these.
27To Kohath belonged the clan of the Amramites and the clan of the Izharites and the clan of the Hebronites and the clan of the Uzzielites; these are the clans of the Kohathites.
28According to the number of all the males, from a month old and upward, there were 8,600, keeping guard over the sanctuary.
29The clans of the sons of Kohath were to camp on the south side of the tabernacle,