2 Chronicles 13:10-14

But as for us, the Lord is our God, and we have not abandoned Him; and the sons of Aaron are ministering to the Lord as priests, and the Levites attend to their work.

Every morning and evening they burn to the Lord burnt offerings and fragrant incense, and the showbread is set on the clean table, and the golden lampstand with its lamps is ready to light every evening; for we perform our duty to the Lord our God, but you have abandoned Him.

Now behold, God is with us at our head, and His priests with the signal trumpets to sound the war cry against you. Sons of Israel, do not fight against the Lord God of your fathers, for you will not succeed.”

But Jeroboam had set an ambush to come from behind, so that Israel was in front of Judah and the ambush was behind them.

When Judah turned around, behold, they were attacked both from front and rear; so they cried out to the Lord, and the priests blew the trumpets.