1 Chronicles 24:2

2 Nadab and Abihu died before their father and left no sons. So Eleazar and Ithamar filled the office of priest.

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 The family of Aaron was grouped as follows: Aaron's sons were Nadab, Abihu, Eleazar, and Ithamar.

2 Nadab and Abihu died before their father and left no sons. So Eleazar and Ithamar filled the office of priest.

3 David assigned Zadok from the family of Eleazar and Ahimelech from the family of Ithamar and assigned them to separate divisions for carrying out their appointed ministries.

4 It turned out that there were more leaders in Eleazar's family than in Ithamar's and so they divided them proportionately: sixteen clan leaders from Eleazar's family and eight clan leaders from Ithamar's family.

5 They assigned the leaders by lot, treating both families alike, for there were officials of the sanctuary and officials of God among both the Eleazar and Ithamar families.