Aaron took to himself Elisheba, daughter of Amminadab, sister of Nahshon, as wife; and she bore him Nadab, Abihu, Eleazar, and Ithamar.
Exodus 6:23
Surrounding context
6:22 And the sons of Uzziel were Mishael, Elzaphan, and Zithri.
6:23 Aaron took to himself Elisheba, daughter of Amminadab, sister of Nahshon, as wife; and she bore him Nadab, Abihu, Eleazar, and Ithamar.
6:24 And the sons of Korah were Assir, Elkanah, and Abiasaph. These are the families of the Korahites.