Numbers 3:14-28

14Then the LORD spoke to Moses in the Wilderness of Sinai, saying, 15“Number the Levites by their families and clans. You are to count every male a month old or more.”

16So Moses numbered them according to the word of the LORD, as he had been commanded.

17These were the sons of Levi by name: Gershon, Kohath, and Merari. 18These were the names of the sons of Gershon by their clans: Libni and Shimei. 19The sons of Kohath by their clans were Amram, Izhar, Hebron, and Uzziel. 20And the sons of Merari by their clans were Mahli and Mushi. These were the clans of the Levites, according to their families.

21From Gershon came the Libnite clan and the Shimeite clan; these were the Gershonite clans. 22The number of all the males a month old or more was 7,500.

23The Gershonite clans were to camp on the west, behind the tabernacle, 24and the leader of the families of the Gershonites was Eliasaph son of Lael.

25The duties of the Gershonites at the Tent of Meeting were the tabernacle and tent, its covering, the curtain for the entrance to the Tent of Meeting, 26the curtains of the courtyard, the curtain for the entrance to the courtyard that surrounds the tabernacle and altar, and the cords—all the service for these items.

27From Kohath came the clans of the Amramites, the Izharites, the Hebronites, and the Uzzielites; these were the clans of the Kohathites. 28The number of all the males a month old or more was 8,600.1 They were responsible for the duties of the sanctuary.