2 Chronicles 13:15-17
13:15 and the men of Judah gave the battle cry. As the men of Judah gave the battle cry, the Lord struck down Jeroboam and all Israel before Abijah and Judah.
13:16 The Israelites fled from before the Judahite army, and God handed them over to the men of Judah.
13:17 Abijah and his army thoroughly defeated them; 500,000 well-trained Israelite men fell dead.