Numbers 3:27 And of Kohath was the family of the Amramites, and the family of the Izeharites, and the family of the Hebronites, and the family of the Uzzielites: these are the families of the Kohathites. Nave's Topical Index
Numbers 4:18-20 Cut you not off the tribe of the families of the Kohathites from among the Levites: Nave's Topical Index