2 Chronicles 20:21

21 And when he had consulted with the people, he appointed some to sing unto the LORD and to praise in the beauty of holiness, while the army went out and to say, Praise the LORD, for his mercy endures for ever.

2 Chronicles 20:21 Meaning and Commentary

2 Chronicles 20:21

And when he had consulted with the people
His principal officers, in what order they should march, and in what manner they should form themselves, when they met the enemy, and how they should conduct as if they were to engage: he appointed singers unto the Lord;
to sing his praise, and give him glory, as if the victory was already completed, it being so sure: and that should praise the beauty of holiness, as they went out before
the army;
that is, praise God, who is glorious in holiness, whose beauty lies in his holiness, and who is holy in all his ways and works: and to say, praise the Lord, for his mercy endureth for ever;
with which they were to conclude their songs of praise, as David did, and whose songs they might sing; see ( Psalms 136:1-26 ) .

2 Chronicles 20:21 In-Context

19 And the Levites, of the sons of the Kohath and of the sons of the Korah, stood up to praise the LORD God of Israel with a loud voice on high.

20 And when they arose early in the morning and while they were going forth into the wilderness of Tekoa, Jehoshaphat stood and said, Hear me, O Judah, and ye inhabitants of Jerusalem; Believe the LORD your God, and ye shall be secure; believe his prophets, and ye shall be prospered.

21 And when he had consulted with the people, he appointed some to sing unto the LORD and to praise in the beauty of holiness, while the army went out and to say, Praise the LORD, for his mercy endures for ever.

22 And when they began to sing and to praise, the LORD set the sons of Moab and those of Mount Seir to ambush the sons of Ammon, who were coming against Judah; and they smote one another.

23 And the sons of Ammon and Moab rose 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, each one helped his companion to kill himself.