Exodus 6:21-24

And the sons of Izhar; Korah, and Nepheg, and Zichri. And the sons of Uzziel; Mishael, and Elzaphan, and Zithri. And Aaron took him Elisheba, daughter of Amminadab, sister of Naashon, to wife; and she bare him Nadab, and Abihu, Eleazar, and Ithamar. And the sons of Korah; Assir, and Elkanah, and Abiasaph: these are the families of the Korhites.