אֲבִיהוּא

Exodus 6:23 אֲבִיה֔וּא Abihu

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

Here: 'He is (my) father', most likely referring to God. Second son. He dies with Nadab and leaves no sons (Num 3:4).

Exodus 24:1 וַאֲבִיה֔וּא and Abihu

Then the LORD said to Moses, “Come up to the LORD—you and Aaron, Nadab and Abihu, and seventy of Israel’s elders—and you are to worship at a distance.

Here: Aaron's second son. The name means 'He is (my) father'. He shares Nadab's privilege here and his fate in Leviticus 10.

Exodus 24:9 וַאֲבִיה֔וּא and Abihu

Then Moses went up with Aaron, Nadab and Abihu, and seventy of the elders of Israel,

Exodus 28:1 וַאֲבִיה֛וּא and Abihu

“Next, have your brother Aaron brought to you from among the Israelites, along with his sons Nadab, Abihu, Eleazar, and Ithamar, to serve Me as priests.

Here: The second son. The name means 'He is my father', meaning God. He died with Nadab in Leviticus 10.

Leviticus 10:1 וַאֲבִיה֜וּא and Abihu

Now Aaron’s sons Nadab and Abihu took their censers, put fire in them and added incense, and offered unauthorized fire before the LORD, contrary to His command.

Here: Aaron's second son. The name means 'He is (my) father'. He was with Nadab at Sinai in Exodus 24.

Numbers 3:2 וַאֲבִיה֕וּא and Abihu

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

Numbers 3:4 וַאֲבִיה֣וּא and Abihu

Nadab and Abihu, however, died in the presence of the LORD when they offered unauthorized fire before the LORD in the Wilderness of Sinai. And since they had no sons, only Eleazar and Ithamar served as priests during the lifetime of their father Aaron.

Numbers 26:60 אֲבִיה֑וּא Abihu

Nadab, Abihu, Eleazar, and Ithamar were born to Aaron,

Numbers 26:61 וַאֲבִיה֑וּא and Abihu

but Nadab and Abihu died when they offered unauthorized fire before the LORD.

1 Chronicles 6:3 וַאֲבִיה֔וּא and Abihu

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

1 Chronicles 24:1 וַאֲבִיה֔וּא and Abihu

These were the divisions of the descendants of Aaron. The sons of Aaron were Nadab, Abihu, Eleazar, and Ithamar.

Here: Aaron's second son; the name means 'He is (my) father'. Nadab and Abihu are always named as a pair, and the pair is always tied to the 'strange fire' disaster. They are listed here only to be ruled out as founders of any division.

1 Chronicles 24:2 וַאֲבִיהוּא֙ and Abihu

But Nadab and Abihu died before their father did, and they had no sons; so Eleazar and Ithamar served as priests.