kjv@Numbers:3:4 @ And 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: and Eleazar and Ithamar ministered in the priest's office in the sight of Aaron their father.
kjv@Numbers:26:61 @ And Nadab and Abihu died, when they offered strange fire before the LORD.
kjv@1Chronicles:24:2 @ But Nadab and Abihu died before their father, and had no children: therefore Eleazar and Ithamar executed the priest's office.