2 Chronicles 13:13-18

While Abijah was speaking, Jeroboam had sent men around to take them by surprise from the rear: Jeroboam in front of Judah and the ambush behind. When Judah looked back, they saw they were attacked front and back. They prayed desperately to GOD, the priests blew their trumpets, and the soldiers of Judah shouted their battle cry. At the battle cry, God routed Jeroboam and all Israel before Abijah and Judah. The army of Israel scattered before Judah; God gave them the victory. Abijah and his troops slaughtered them—500,000 of Israel’s best fighters were killed that day. The army of Israel fell flat on its face—a humiliating defeat. The army of Judah won hands down because they trusted GOD, the God of their ancestors.