Numbers 3:4

Christian Standard Bible Anglicised

But Nadab and Abihu died in the Lord’s presence when they presented unauthorised fire  before the Lord in the Wilderness of Sinai, and they had no sons. So Eleazar and Ithamar served as priests under the direction of Aaron their father.

Cross References

Numbers 26:61

but Nadab and Abihu died when they presented unauthorised fire before the Lord.

Numbers 3:5

The Lord spoke to Moses:

Numbers 19:3

Give it to the priest Eleazar,  and he will have it brought outside the camp and slaughtered in his presence.

Numbers 20:25

Take Aaron and his son Eleazar and bring them up Mount Hor.

Numbers 16:35

Fire also came out from the Lord and consumed the 250 men who were presenting the incense.

1 Chronicles 24:1

The divisions of the descendants of Aaron were as follows: Aaron’s sons were Nadab, Abihu, Eleazar, and Ithamar.