Exodus 6:19-23

And the sons of Merari; Mahali and Mushi: these are the families of Levi according to their generations.

And Amram took him Jochebed his father’s sister to wife; and she bare him Aaron and Moses: and the years of the life of Amram were an hundred and thirty and seven years.

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.