Numbers 3:4

English Standard Version

4 But Nadab and Abihu died before the Lord when they offered unauthorized fire before the Lord in the wilderness of Sinai, and they had no children. So Eleazar and Ithamar served as priests in the lifetime of Aaron their father. (Le 10:1; Nu 26:61; 1Ch 24:2)

New International Version

4 Nadab and Abihu, however, died before the Lord when they made an offering with unauthorised fire before him in the Desert of Sinai. They had no sons, so Eleazar and Ithamar served as priests during the lifetime of their father Aaron.

New International Reader’s Version

4 But Nadab and Abihu made an offering to the LORD by using fire that wasn’t allowed. So they died in front of him. That happened in the Desert of Sinai. They didn’t have any sons. Only Eleazar and Ithamar served as priests while their father Aaron was living.

King James Version

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' office in the sight of Aaron their father.