Exodus 6:23-25

Young's Literal Translation

²³ And Aaron taketh Elisheba daughter of Amminadab, sister of Naashon, to himself for a wife, and she beareth to him Nadab, and Abihu, Eleazar, and Ithamar.

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

²⁵ And Eleazar, Aaron's son, hath taken to him [one] of the daughters of Putiel for a wife to himself, and she beareth to him Phinehas: these [are] heads of the fathers of the Levites, as to their families.