Numbers 3:4

4 But Nadab and Abihu died before the LORD, when they offered strange fire before the LORD, in the wilderness of Sinai, and they had no sons; and Eleazar and Ithamar exercised the priesthood in the sight of Aaron, their father.

Numbers 3:4 In-Context

2 And these are the names of the sons of Aaron: Nadab, the firstborn, and Abihu, Eleazar, and Ithamar.
3 These are the names of the sons of Aaron, anointed priests, whose hands he filled to administer the priesthood.
4 But Nadab and Abihu died before the LORD, when they offered strange fire before the LORD, in the wilderness of Sinai, and they had no sons; and Eleazar and Ithamar exercised the priesthood in the sight of Aaron, their father.
5 And the LORD spoke unto Moses, saying,
6 Bring the tribe of Levi near and present them before Aaron, the priest, that they may minister unto him.
The Jubilee Bible (from the Scriptures of the Reformation), edited by Russell M. Stendal, Copyright © 2000, 2001, 2010