Exodus 6:23-25

Darby Translation

²³ And Aaron took Elisheba, daughter of Amminadab, sister of Nahshon, as wife; and she bore him Nadab and Abihu, Eleazar and Ithamar.

²⁴ And the sons of Korah: Assir, and Elkanah, and Abiasaph: these are the families of the Korahites.

²⁵ And Eleazar Aaron's son took [one] of the daughters of Putiel as wife; and she bore him Phinehas: these are the heads of the fathers of the Levites according to their families.