And the Levites from the Kohathites and Korahites stood up to praise the LORD, the God of Israel, shouting in a very loud voice.
We have here God's gracious answer to Jehoshaphat's prayer; and it was a speedy answer. While he was yet speaking God heard: before the congregation was dismissed they had assurance given them that they should be victorious; for it is never in vain to seek God. 1.
Commenting on 2 Chronicles 20:14-19
And the Levites, of the children of the Kohathites, and of the children of the Korhites,.... Who were of the posterity of Kohath, in the line of Korah: stood up to praise the Lord God of Israel with a loud voice on high; in high notes; they being the course in turn at this time for this service.
the Levites . . . stood up to praise the Lord--doubtless by the king's command. Their anthem was sung with such a joyful acclaim as showed that they universally regarded the victory as already obtained.