And David distributed them, both Zadok of the sons of Eleazar, and Ahimelech of the sons of Ithamar, according to their offices in their service. And Ahimelech - Ahimelech is put here for Abiathar, who was high priest in the days of David. Abiathar had also the name of Ahimelech, as well as his father. See Calmet.
Related Commentaries of 1 Chronicles 24:3
1 Chronicles 24:3
3 And David distributed them, both Zadok of the sons of Eleazar, and Ahimelech of the sons of Ithamar, according to their offices in their service.