NET
3 Abijah launched the attack with 400,000 well-trained warriors, while Jeroboam deployed against him 800,000 well-trained warriors.
Darby
3 And 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.
KJV
3 And Abijah set the battle in array with an army of valiant men of war, [even] four hundred thousand chosen men: Jeroboam also set the battle in array against him with eight hundred thousand chosen men, [being] mighty men of valour.