from
Easton's 1897 Bible Dictionary
Ahimaaz
brother of anger = irascible. (1.) The father Ahinoam, the wife
of Saul (1 Sam. 14:50).
(2.) The son and successor of Zadok in the office of high
priest (1 Chr. 6:8, 53). On the occasion of the revolt of
Absalom he remained faithful to David, and was of service to him
in conveying to him tidings of the proceedings of Absalom in
Jerusalem (2 Sam. 15:24-37; 17:15-21). He was swift of foot, and
was the first to carry to David tidings of the defeat of
Absalom, although he refrained, from delicacy of feeling, from
telling him of his death (2 Sam. 18:19-33).