1 Chronicles 24:2

2 and Nadab dieth, and Abihu, in the presence of their father, and they had no sons, and Eleazar and Ithamar act as priests.

1 Chronicles 24:2 Meaning and Commentary

1 Chronicles 24:2

But Nadab and Abihu died before their father
While he was living, see ( Leviticus 10:1 Leviticus 10:2 )

and had no children, therefore Eleazar and Ithamar executed the
priests' office:
otherwise, as Jarchi observes, had their brethren left children, they would have come into the office before them.

1 Chronicles 24:2 In-Context

1 And to the sons of Aaron [are] their courses: sons of Aaron [are] Nadab, and Abihu, Eleazar, and Ithamar,

2 and Nadab dieth, and Abihu, in the presence of their father, and they had no sons, and Eleazar and Ithamar act as priests.

3 And David distributeth them, and Zadok of the sons of Eleazar, and Ahimelech of the sons of Ithamar, according to their office in their service;

4 and there are found of the sons of Eleazar more for heads of the mighty men than of the sons of Ithamar; and they distribute them: Of the sons of Eleazar, heads for a house of fathers, sixteen; and of the sons of Ithamar, for a house of their fathers, eight.

5 And they distribute them, by lots, one with another, for princes of the sanctuary, and princes of God, have been of the sons of Eleazar, and of the sons of Ithamar.