Abigail - (Easton's Bible Dictionary)
Father (i.e., "leader") of the dance, or "of joy." (1.) The sister of David, and wife of Jether an Ishmaelite (1 Chr. 2:16, 17). She was the mother of Amasa (2 Sam. 17:25).
(2.) The wife of the churlish Nabal, who dwelt in the district of Carmel (1 Sam. 25:3). She showed great prudence and delicate management at a critical period of her husband's life. She was "a woman of good understanding, and of a beautiful countenance." After Nabal's death she became the wife of David (1 Sam. 25:14-42), and was his companion in all his future fortunes (1 Sam. 27:3; 30:5; 2 Sam. 2:2). By her David had a son called Chileab (2 Sam. 3:3), elsewhere called Daniel (1 Chr. 3:1).