With the people, i.e. with the elders or chief of the people; partly to take their advice about the expediency of the thing; and partly that they might excite and prepare themselves, and the people under them, to this great work of praising God. He appointed singers unto the Lord; to the honour and service of God. The beauty of holiness, or, the glory, or magnificence, or majesty of holiness, i.e. (by a vulgar Hebraism,) the Holy Majesty; a periphrasis of God. Or, according to the beauty or magnificence of the sanctuary, i.e. in the same comely order and magnificent manner as they used to do it in the temple; where the following song was usually sung, as 2 Chronicles 5:13, 2 Chronicles 7:3,6.
Related Commentaries of 2 Chronicles 20:21
2 Chronicles 20:21
21 And when he had consulted with the people, he appointed singers unto the LORD, and that should praise the beauty of holiness, as they went out before the army, and to say, Praise the LORD; for his mercy endureth for ever.