2 Chronicles 20:3, 12, 15, 22, 30

And Jehoshaphat feared, and set himself to seek the LORD, and proclaimed a fast throughout all Judah.

O our God, wilt thou not judge them? for we have no might against this great company that cometh against us; neither know we what to do: but our eyes are upon thee.

and he said, Hearken ye, all Judah, and ye inhabitants of Jerusalem, and thou king Jehoshaphat, Thus saith the LORD unto you, Be not afraid nor dismayed by reason of this great multitude; for the battle is not your's, but God's.

And when they began to sing and to praise, the LORD set ambushments against the children of Ammon, Moab, and mount Seir, which were come against Judah; and they were smitten.

So the realm of Jehoshaphat was quiet: for his God gave him rest round about.