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

‘O our God, dost Thou not execute judgment upon them? for there is no power in us before this great multitude that hath come against us, and we know not what we do, but on Thee [are] our eyes.’

and he saith, ‘Attend, all Judah, and ye inhabitants of Jerusalem, and O king Jehoshaphat, Thus said JEHOVAH to you, Ye fear not, nor are afraid of the face of this great multitude, for not for you [is] the battle, but for God.

Not for you to fight in this; station yourselves, stand, and see the salvation of JEHOVAH with you, O Judah and Jerusalem — be not afraid nor fear ye — to-morrow go out before them, and JEHOVAH [is] with you.’

And they rise early in the morning, and go out to the wilderness of Tekoa, and in their going out Jehoshaphat hath stood and saith, ‘Hear me, O Judah, and inhabitants of Jerusalem, remain stedfast in JEHOVAH your God, and be stedfast; remain stedfast in His prophets, and prosper.’ And he taketh counsel with the people, and appointeth singers to JEHOVAH, and those giving praise to the honour of holiness, in the going out before the armed [men], and saying, ‘Give ye thanks to JEHOVAH, for to the age [is] His kindness.’