20:28 To the house - To renew their praises in the court of the temple, the proper and usual place for it. Praising God must not be the work of a day only, but our praises when we have received mercy, must be often repeated, as our prayers were, when we where in pursuit of it. Every day we must bless God: as long as we live, and while we have any being, we must praise him, spending our time in that work, in which we hope to spend our eternity.
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.