the divisions

1 Chronicles 23:6
Then David divided the Levites into divisions according to the sons of Levi: Gershom, Kohath, and Merari.

The sons

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

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

Exodus 28:1
Next, bring near to you your brother Aaron from among the Israelites, along with his sons Nadab, Abihu, Eleazar, and Ithamar, to serve Me as priests.

Leviticus 10:1-6
Now Aaron's sons Nadab and Abihu took their censers, put fire in them, placed incense on them, and offered unauthorized fire before the LORD, contrary to His command. . . .

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

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