Numbers 26:61

New King James Version

And Nadab and Abihu died when they offered profane fire before the Lord.

Cross References

Exodus 6:23

Aaron took to himself Elisheba, daughter of Amminadab, sister of Nahshon, as wife; and she bore him Nadab, Abihu, Eleazar, and Ithamar.

Numbers 3:4

Nadab and Abihu had died before the Lord when they offered profane 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.