Exodus 6:23-25

Amplified Bible

²³ Aaron married Elisheba, the daughter of Amminadab and the sister of Nahshon, and she gave birth to Nadab, Abihu, Eleazar, and Ithamar. ²⁴ The sons of Korah: Assir, Elkanah, and Abiasaph. These are the [extended] families of the Korahites. ²⁵ Eleazar, Aaron’s son, married one of the daughters of Putiel, and she gave birth to Phinehas. These are the heads of the fathers’ households of the Levites by their families.