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. (1 Chronicles 24:3)
Though here named with Zadok he is not called “the priest,” but merely “the son of Abiathar” (v. 6). Abiathar had long been David’s priest and counselor, and was associated in the priesthood with Zadok in the reign of David (ch. 15:11). Abiathar had recently been implicated in Adonijah’s rebellion (1 Kings 1:7, 18, 19; 1 Kings 2:26, 27; see on 2 Sam. 8:17).
David distributed them.
David assigned the offices with the help of two representatives of the descendants of Eleazar and Ithamar.