Numbers 3:21 KJV
Of Gershon was the family of the Libnites, and the family of the Shimites: these are the families of the Gershonites.
Numbers 3:19–23 KJV Chapter Context
19
And the sons of Kohath by their families; Amram, and Izehar, Hebron, and Uzziel.
20
And the sons of Merari by their families; Mahli, and Mushi. These are the families of the Levites according to the house of their fathers.
21
Of Gershon was the family of the Libnites, and the family of the Shimites: 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 pitch behind the tabernacle westward.