Chronicles I 24:1

1 And the sons of Aaron in division, Nadab, and Abiud, and Eleazar, and Ithamar.

Chronicles I 24:1 Meaning and Commentary

1 Chronicles 24:1

Now these are the divisions of the sons of Aaron
Into the classes or courses following:

the sons of Aaron; Nadab and Abihu, Eleazar and Ithamar;
( 1 Chronicles 6:3 ) , these were the immediate sons of Aaron; but the division or distribution of them into classes are of their posterity in the times of David, who descended from the two latter.

Chronicles I 24:1 In-Context

1 And the sons of Aaron in division, Nadab, and Abiud, and Eleazar, and Ithamar.

2 And Nadab and Abiud died before their father, and they had no sons: so Eleazar and Ithamar the sons of Aaron ministered as priests.

3 And David distributed them, even Sadoc of the sons of Eleazar, and Achimelech of the sons of Ithamar, according to their numbering, according to their service, according to the houses of their fathers.

4 And there were found the sons of Eleazar more chiefs of the mighty ones, than of the sons of Ithamar: and he divided them, sixteen heads of families to the sons of Eleazar, eight according to families to the sons of Ithamar.

5 And he divided them according to their lots, one with the other; for there were those who had charge of the holy things, and those who had charge of the of the Lord among the sons of Eleazar, and among the sons of Ithamar.