Abiathar means in the bible: The father of abundance or excellence. He is the son of Ahijah, or Ahimelech, high priest and escapes Saul 1 Samuel. 22:20 15:24-36, 17:15 and 19:11: Adonijah takes part in Adonijah’s rebellion 1 Kgs. 1:7 is pushed out of the priesthood 2;27, 35; Mark 2:16. Ahimelech is likely to be interchangeable with Abiathar in 2 Sam. 8:17; 1 Chr. 18:16; 24:3, 31. Also see 2 Sam. 20:25.
(in Bible Dictionary)
