2 Chronicles 13:14-18

14When Judah turned and discovered that the battle was both before and behind them, they cried out to the LORD. Then the priests blew the trumpets, 15and the men of Judah raised the battle cry. And when they raised the cry, God routed Jeroboam and all Israel before Abijah and Judah.

16So the Israelites fled before Judah, and God delivered them into their hands. 17Then Abijah and his people struck them with a mighty blow, and 500,000 chosen men of Israel fell slain. 18Thus the Israelites were subdued at that time, and the men of Judah prevailed because they relied on the LORD, the God of their fathers.