II Chronicles 13:2-3

He reigned three years in Jerusalem. His mother’s name was Michaiah the daughter of Uriel of Gibeah. And there was war between Abijah and Jeroboam. Abijah set the battle in order with an army of valiant warriors, four hundred thousand choice men. Jeroboam also drew up in battle formation against him with eight hundred thousand choice men, mighty men of valor.