Observe, the weapons of Jehoshaphat were faith, and dependence on the Lord. Whether the company with the king had other weapons with them is not said: but he went forth depending upon the Lord; and he begun the preparation for battle with a song of victory. So should all the soldiers of Jesus go forth. For it is in his strength they fight: and the issue is not doubtful. The fight is in fact already over; Christ hath conquered: and his people overcome by his blood.
Related Commentaries of 2 Chronicles 20:20
2 Chronicles 20:20-21
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.
21 And when he had consulted with the people, he appointed singers unto the LORD, and that should praise the beauty of holiness, as they went out before the army, and to say, Praise the LORD; for his mercy endureth for ever.