2 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
Chapter 13
3And Abijah began the war with an army of men of war, four hundred thousand chosen men; and Jeroboam set the battle in array against him with eight hundred thousand chosen men, mighty men of valour.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.