“These were the divisions of the sons of Aaron. The sons of Aaron: Nadab, Abihu, Eleazar, and Ithamar.”
1 Chronicles 24:1 (WEB)
Context Reading
1These were the divisions of the sons of Aaron. The sons of Aaron: Nadab, Abihu, Eleazar, and Ithamar. 2But Nadab and Abihu died before their father, and had no children; therefore Eleazar and Ithamar served as priests. 3David, with Zadok of the sons of Eleazar and Ahimelech of the sons of Ithamar, divided them according to their ordering in their service.