Jehoshaphat, the king of Judah, responded to a serious military threat with an exemplary reliance on the divine power of God. Earlier in verse 15 the Lord had declared to him that the battle was not his, but God’s…and Jehoshaphat took Him at His Word. And so early that morning as they all gathered to march against the enemy, Jehoshaphat deliberately placed a choir out front…no swords or bows, just tambourines and singing. And in doing so showed his upmost trust and belief for protection & deliverance…for it would have to be divine power not human effort that would bring about the victory.