And David distributed them, both Zadok of the sons of Eleazar, and Ahim elech ofthe sons of Ithamar, according to their offices in their service . Is Ahimelech the son of a. Ahitub ben Phinehas (1 Sam. 22: 9) b. Ithamar ben Aaron (Chronicles 24:3) c. Abiathar the priest (1 Sam. 30: 7 -- but in 1 Sam. 23: 6 Abiathar is called Ahimelech's son)