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 Jehovah your God, so shall ye be established; believe his prophets, so shall ye prosper. 21 And when he had taken counsel with the people, he appointed them that should sing unto Jehovah, and give praise in holy array, as they went out before the army, and say, Give thanks unto Jehovah; for his lovingkindness [endureth] for ever. 22 And when they began to sing and to praise, Jehovah set liers-in-wait against the children of Ammon, Moab, and mount Seir, that were come against Judah; and they were smitten. 23 For the children of Ammon and Moab stood up against the inhabitants of mount Seir, utterly to slay and destroy them: and when they had made an end of the inhabitants of Seir, every one helped to destroy another. 24 And when Judah came to the watch-tower of the wilderness, they looked upon the multitude; and, behold, they were dead bodies fallen to the earth, and there were none that escaped. 25 And when Jehoshaphat and his people came to take the spoil of them, they found among them in abundance both riches and dead bodies, and precious jewels, which they stripped off for themselves, more than they could carry away: and they were three days in taking the spoil, it was so much. 26 And on the fourth day they assembled themselves in the valley of Beracah; for there they blessed Jehovah: therefore the name of that place was called The valley of Beracah unto this day. 27 Then they returned, every man of Judah and Jerusalem, and Jehoshaphat in the forefront of them, to go again to Jerusalem with joy; for Jehovah had made them to rejoice over their enemies. 28 And they came to Jerusalem with psalteries and harps and trumpets unto the house of Jehovah. 29 And the fear of God was on all the kingdoms of the countries, when they heard that Jehovah fought against the enemies of Israel. 30 So the realm of Jehoshaphat was quiet; for his God gave him rest round about.

Matthew Henry's Commentary on 2 Chronicles 20:20-30

Commentary on 2 Chronicles 20:20-30

(Read 2 Chronicles 20:20-30)

Jehoshaphat exhorted his troops to firm faith in God. Faith inspires a man with true courage; nor will any thing help more to the establishing of the heart in shaking times, than a firm belief of the power, and mercy, and promise of God. In all our trust in the Lord, and our praises of him, let us especially look at his everlasting mercy to sinners through Jesus Christ. Never was an army so destroyed as that of the enemy. Thus God often makes wicked people destroy one another. And never was a victory celebrated with more solemn thanksgivings.