2 Chronicles 20:14-17

14And upon Jahaziel the son of Zechariah, the son of Benaiah, the son of Jeiel, the son of Mattaniah, a Levite of the sons of Asaph, upon him came the Spirit of Jehovah, in the midst of the congregation;

15and he said, Be attentive, all Judah, and ye inhabitants of Jerusalem, and thou king Jehoshaphat! Thus saith Jehovah unto you: Fear not, nor be dismayed by reason of this great multitude; for the battle is not yours, but 1God's.

16To-morrow go down against them: behold, they come up by the ascent of Ziz; and ye shall find them at the end of the valley, before the wilderness of Jeruel.

17Ye shall not have to fight on this occasion: set yourselves, stand and see the salvation of Jehovah [who is] with you! Judah and Jerusalem, fear not nor be dismayed; to-morrow go out against them, and Jehovah will be with you.