II Chronicles 20:12-15

O our God, will You not judge them? For we have no power against this great multitude that is coming against us; nor do we know what to do, but our eyes are upon You.” Now all Judah, with their little ones, their wives, and their children, stood before the LORD. Then the Spirit of the LORD came 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, in the midst of the assembly. And he said, “Listen, all you of Judah and you inhabitants of Jerusalem, and you, King Jehoshaphat! Thus says the LORD to you: ‘Do not be afraid nor dismayed because of this great multitude, for the battle is not yours, but God’s.