1 Chronicles 24:2

But Nadab and Abihu died before their father and had no sons; therefore Eleazar and Ithamar served as priests.

Leviticus 10:2

And fire came out from the presence of the Lord and devoured them, and they died before the Lord.

Numbers 3:4

But Nadab and Abihu died in the presence of the Lord when they offered strange (unholy, unacceptable, inappropriate) fire before the Lord in the Wilderness of Sinai; and they had no sons. So Eleazar and Ithamar served as priests in the presence and under the supervision of Aaron their father.

Numbers 26:61

But Nadab and Abihu died [in the presence of God] when they offered [in their ceremonial censers] strange [unholy, unacceptable, unauthorized] fire before the Lord.

Exodus 24:1

Then God said to Moses, “Come up to the Lord, you and Aaron, Nadab and Abihu (Aaron’s older sons), and seventy of Israel’s elders, and you shall worship at a [safe] distance.

Exodus 24:9

Then Moses, Aaron, Nadab, and Abihu, and seventy of the elders of Israel went up [the mountainside],

Exodus 29:9

And you shall wrap them with sashes, Aaron and his sons, and put the [ornamental] caps on them; and the priest’s office shall be theirs by a perpetual statute. So you shall ordain Aaron and his sons.

Leviticus 10:12

Then Moses said to Aaron, and to his surviving sons, Eleazar and Ithamar, “Take the grain offering that is left over from the offerings by fire to the Lord, and eat it unleavened beside the altar, for it is most holy.

Numbers 16:39-40

So Eleazar the priest took the bronze censers which the Levites who were burned had offered, and they were hammered out [into broad sheets] as a plating for the [bronze] altar [of burnt offering],

Numbers 18:7

Therefore you and your sons with you shall attend to your priesthood for everything concerning the altar [of burnt offering and the altar of incense] and [of the Holy of Holies] within the veil, and you are to serve. I am giving you the priesthood as a bestowed service, but the stranger (outsider, layman) who approaches shall be put to death.”

Treasury of Scripture Knowledge

Summary

But Nadab and Abihu died before their father, and had no children: therefore Eleazar and Ithamar executed the priest's office.

General references

Bible References

Died

Leviticus 10:2
And fire came out from the presence of the Lord and devoured them, and they died before the Lord.
Numbers 3:4
But Nadab and Abihu died in the presence of the Lord when they offered strange (unholy, unacceptable, inappropriate) fire before the Lord in the Wilderness of Sinai; and they had no sons. So Eleazar and Ithamar served as priests in the presence and under the supervision of Aaron their father.
Numbers 26:61
But Nadab and Abihu died [in the presence of God] when they offered [in their ceremonial censers] strange [unholy, unacceptable, unauthorized] fire before the Lord.

General references

Numbers 26:61
But Nadab and Abihu died [in the presence of God] when they offered [in their ceremonial censers] strange [unholy, unacceptable, unauthorized] fire before the Lord.