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.
Numbers 3:4 Cross References - TKJU
Leviticus 10:1-2
Numbers 26:61
61 And Nadab and Abihu died, when they offered strange fire before the LORD.