Exodus 6:23 And Aaron took him Elisheba, daughter of Amminadab, sister of Naashon, to wife; and she bare him Nadab, and Abihu, Eleazar, and Ithamar.

Numbers 26:60 And unto Aaron was born Nadab, and Abihu, Eleazar, and Ithamar.

1 Chronicles 6:3 And the children of Amram; Aaron, and Moses, and Miriam. The sons also of Aaron; Nadab, and Abihu, Eleazar, and Ithamar.

1 Chronicles 24:1 Now these are the divisions of the sons of Aaron. The sons of Aaron; Nadab, and Abihu, Eleazar, and Ithamar.