Reference: Abihu
Hastings
Second son of Aaron (Ex 6:23; Nu 3:2; 26:60; 1Ch 6:3; 24:1); accompanied Moses to the top of Sinai (Ex 24:1,9); admitted to the priest's office (Ex 28:1); slain along with his brother Nadab for offering strange fire (Le 10:1-2; Nu 3:4; 26:61; 1Ch 24:2).
See Verses Found in Dictionary
Aaron married Elisheba, the daughter of Amminadab and sister of Nahshon, and she bore him Nadab and Abihu, Eleazar and Ithamar.
But to Moses the Lord said, "Come up to the Lord, you and Aaron, Nadab and Abihu, and seventy of the elders of Israel, and worship from a distance.
"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.
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. So fire went out from the presence of the Lord and consumed them so that they died before the Lord.
These are the names of the sons of Aaron: Nadab, the firstborn, and Abihu, Eleazar, and Ithamar.
Nadab and Abihu died before the Lord when they offered strange fire before the Lord in the wilderness of Sinai, and they had no children. So Eleazar and Ithamar ministered as priests in the presence of Aaron their father.