He reigned three years in Jerusalem
 (See Gill on 1 Kings 15:2), 
 his mother's name also was Michaiah the daughter of Uriel of Gibeah;
 see ( 2 Chronicles 11:20 ) , (See Gill on 1 Kings 15:2). 
 and there was war between Abijah and Jeroboam;
 and in this chapter is an account of a battle fought between them, not recorded in the book of Kings.