2 Chronicles 20:12, 15, 17, 20-21

Our God, will you not judge them? For we have no might against this great company that comes against us. We don’t know what to do, but our eyes are on you.”

and he said, “Listen, all Judah, and you inhabitants of Jerusalem, and you, King Jehoshaphat. Yahweh says to you, ‘Don’t be afraid, and don’t be dismayed because of this great multitude; for the battle is not yours, but God’s.

You will not need to fight this battle. Set yourselves, stand still, and see the salvation of Yahweh with you, O Judah and Jerusalem. Don’t be afraid, nor be dismayed. Go out against them tomorrow, for Yahweh is with you.’”

They rose early in the morning and went out into the wilderness of Tekoa. As they went out, Jehoshaphat stood and said, “Listen to me, Judah and you inhabitants of Jerusalem! Believe in Yahweh your God, so you will be established! Believe his prophets, so you will prosper.” When he had taken counsel with the people, he appointed those who were to sing to Yahweh and give praise in holy array as they go out before the army, and say, “Give thanks to Yahweh, for his loving kindness endures forever.”