2 The names of Aaron’s sons are Nadab (firstborn), Abihu, Eleazar, and Ithamar.
Numbers 3:2 Cross References - NSB
Exodus 6:23
23 Aaron married Elisheba, the daughter of Amminadab, the sister of Nahshon, and she bore him Nadab and Abihu, Eleazar and Ithamar.
Exodus 28:1
1 Jehovah continued: »Bring your brother Aaron and his sons Nadab, Abihu, Eleazar and Ithamar to you from all the Israelites. They will serve me as priests.
Numbers 26:60
60 Aaron was the father of Nadab, Abihu, Eleazar, and Ithamar.
1 Chronicles 6:3
3 The children of Amram: Aaron, Moses and Miriam. The sons of Aaron: Nadab, Abihu, Eleazar and Ithamar.
1 Chronicles 24:1
1 The divisions of Aaron’s descendants were as follows: Aaron’s sons were Nadab and Abihu, Eleazar and Ithamar.