1 Chronicles 24:1-2

The Voice

24 Because Aaron’s family was set apart by God for the service of the temple, his family’s genealogy is separated from the other Levites. The Aaronites were divided into families based on the sons of Aaron: Nadab, Abihu, Eleazar and Ithamar. ² The two oldest, Nadab and Abihu, died before their father did, and they had no sons. So Aaron’s youngest sons, Eleazar and Ithamar, became the priests.