Numbers 3:21-26

21Of Gershon was the family of the Libnites and the family of the Shimeites; these were the families of the Gershonites. 22Their numbered men, in the numbering of every male from a month old and upward, even their numbered men were 7,500. 23The families of the Gershonites were to camp behind the 1tabernacle westward, 24and the leader of the fathers’ households of the Gershonites was Eliasaph the son of Lael. 25Now 2the duties of the sons of Gershon in the tent of meeting involved the tabernacle and 3the tent, its covering, and 4the screen for the doorway of the tent of meeting, 26and 5the hangings of the court, and 6the screen for the doorway of the court which is around the tabernacle and the altar, and its cords, according to all the service 7concerning them.