NET
17 Abijah and his army thoroughly defeated them; 500,000 well-trained Israelite men fell dead.
Darby
17 And Abijah and his people slew them with a great slaughter; and there fell down slain of Israel five hundred thousand chosen men.
KJV
17 And Abijah and his people slew them with a great slaughter: so there fell down slain of Israel five hundred thousand chosen men.