15 He said, "Listen, all Judah and inhabitants of Jerusalem, and King Jehoshaphat: Thus says the Lord to you: "Do not fear or be dismayed at this great multitude; for the battle is not yours but God's. 16 Tomorrow go down against them; they will come up by the ascent of Ziz; you will find them at the end of the valley, before the wilderness of Jeruel. 17 This battle is not for you to fight; take your position, stand still, and see the victory of the Lord on your behalf, O Judah and Jerusalem.' Do not fear or be dismayed; tomorrow go out against them, and the Lord will be with you."
Matthew Henry's Commentary on 2 Chronicles 20:15-17
Commentary on 2 Chronicles 20:14-19
(Read 2 Chronicles 20:14-19)
The Spirit of prophecy came upon a Levite in the midst of the congregation. The Spirit, like the wind, blows where and on whom He listeth. He encouraged them to trust in God. Let the Christian soldier go out against his spiritual enemies, and the God of peace will make him more than a conqueror. Our trials will prove our gain. The advantage will be all our own, but the whole glory must be given to God.