2 Chronicles 13:14

11 And they offer holocausts to the Lord, every day, morning and evening, and incense made according to the ordinance of the law, and the loaves are set forth on a most clean table, and there is with us the golden candlestick, and the lamps thereof, to be lighted always in the evening: for we keep the precepts of the Lord our God, whom you have forsaken.

12 Therefore God is the leader in our army, and his priests who sound with trumpets, and resound against you: O children of Israel, fight not against the Lord the God of your fathers, for it is not good for you.

13 While he spoke these things, Jeroboam caused an ambushment to come about behind him. And while he stood facing the enemies, he encompassed Juda, who perceived it not, with his army.

14 And when Juda looked back, they saw the battle coming upon them both before and behind, and they cried to the Lord: and the priests began to sound with the trumpets.

15 And all the men of Juda shouted: and behold when they shouted, God terrified Jeroboam, and all Israel that stood against Abia and Juda.

16 And the children of Israel fled before Juda, and the Lord delivered them into their hand.

17 And Abia and his people slew them with a great slaughter, and there fell wounded of Israel five hundred thousand valiant men.