1 Chronicles 6:3

6:3 The children of Amram:

Aaron, Moses, and Miriam.

The sons of Aaron:

Nadab, Abihu, Eleazar, and Ithamar.

Exodus 6:23

6:23 Aaron married Elisheba, the daughter of Amminadab and sister of Nahshon, and she bore him Nadab and Abihu, Eleazar and Ithamar.

Exodus 28:1

The Clothing of the Priests

28:1 “And you, bring near to you your brother Aaron and his sons with him from among the Israelites, so that they may minister as my priests – Aaron, Nadab and Abihu, Eleazar and Ithamar, Aaron’s sons.

Leviticus 10:1-6

Nadab and Abihu

10:1 Then Aaron’s sons, Nadab and Abihu, each took his fire pan and put fire in it, set incense on it, and presented strange fire before the Lord, which he had not commanded them to do. 10:2 So fire went out from the presence of the Lord and consumed them so that they died before the Lord. 10:3 Moses then said to Aaron, “This is what the Lord spoke: ‘Among the ones close to me I will show myself holy, and in the presence of all the people I will be honored.’” So Aaron kept silent. 10:4 Moses then called to Mishael and Elzaphan, the sons of Uzziel, Aaron’s uncle, and said to them, “Come near, carry your brothers away from the front of the sanctuary to a place outside the camp.” 10:5 So they came near and carried them away in their tunics to a place outside the camp just as Moses had spoken. 10:6 Then Moses said to Aaron and to Eleazar and Ithamar his other two sons, “Do not dishevel the hair of your heads and do not tear your garments, so that you do not die and so that wrath does not come on the whole congregation. Your brothers, all the house of Israel, are to mourn the burning which the Lord has caused,

Numbers 3:2

3:2 These are the names of the sons of Aaron: Nadab, the firstborn, and Abihu, Eleazar, and Ithamar.

Numbers 26:60

26:60 And to Aaron were born Nadab and Abihu, Eleazar and Ithamar.