2Ch 2 Chronicles, chapter Second Book of Chronicles, chapter 20
And they rose early in the morning, and went forth into the wilderness of Tekoa; and as they went forth, Jehoshaphat stood and said: 'Hear me, O Judah, and ye inhabitants of Jerusalem; believe in the LORD your God, so shall ye be established; believe His prophets, so shall ye prosper.' 2Sa 14:2; Exo 14:31