Discovery BoxNumbers 3:17-22 
Context3:17 These were the sons 1 of Levi by their names: Gershon, Kohath, and Merari.
3:18 These are the names of the sons of Gershon by their families: Libni and Shimei. 3:19 The sons of Kohath by their families were: Amram, Izhar, Hebron, and Uzziel. 3:20 The sons of Merari by their families were Mahli and Mushi. These are the families of the Levites by their clans.
3:21 From Gershon came the family of the Libnites and the family of the Shimeites; these were the families of the Gershonites. 3:22 Those of them who were numbered, counting every male from a month old and upward, were 7,500.
1 tn The word “sons of” does at the outset refer to the sons of Levi. But as the listing continues the expression refers more to the family groups of the various descendants.
