Numbers 3:22

19 And the sons of Kohath by their families: Amram, and Izhar, Hebron, and Uzziel.

20 And the sons of Merari by their families: Mahli and Mushi. These are the families of the Levites according to their fathers` houses.

21 Of Gershon was the family of the Libnites, and the family of the Shimeites: these are the families of the Gershonites.

22 Those that were numbered of them, according to the number of all the males, from a month old and upward, even those that were numbered of them were seven thousand and five hundred.

23 The families of the Gershonites shall encamp behind the tabernacle westward.

24 And the prince of the fathers` house of the Gershonites shall be Eliasaph the son of Lael.

25 And the charge of the sons of Gershon in the tent of meeting shall be the tabernacle, and the Tent, the covering thereof, and the screen for the door of the tent of meeting,