Ezra
2 Chronicles 20:19ESV·traditional attribution

And the Levites, of the Kohathites and the Korahites, stood up to praise the LORD, the God of Israel, with a very loud voice.

Matthew Henry Presbyterian

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

John Gill Reformed Baptist

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.

Jamieson-Fausset-Brown Reformed

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.