Divrey Hayamim Bais 20:21

21 And when he had consulted with HaAm, he appointed meshorarim (singers) unto Hashem, and that should praise the hadrat kodesh, as they went out before the army, and to say, Hodu L’Adonoi ki l’olam chasdo (Give thanks to Hashem, for His mercy endureth forever).

Divrey Hayamim Bais 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 ) .

Divrey Hayamim Bais 20:21 In-Context

19 And the Levi’im, of the Bnei HaKehatim, and of the Bnei HaKorchim, stood up to praise Hashem Elohei Yisroel with an exceeding kol gadol.

20 And they rose early in the boker, and went forth into the Midbar Tekoa; and as they went forth, Yehoshaphat stood and said, Hear me, O Yehudah, and ye inhabitants of Yerushalayim. Ha’aminu BaHashem Eloheichem (Believe in Hashem Eloheichem), so shall ye be established; have faith in His Nevi’im, so shall ye be victorious.

21 And when he had consulted with HaAm, he appointed meshorarim (singers) unto Hashem, and that should praise the hadrat kodesh, as they went out before the army, and to say, Hodu L’Adonoi ki l’olam chasdo (Give thanks to Hashem, for His mercy endureth forever).

22 And when they began with rinnah and tehillah, Hashem set me’arevim (ambushers) against the Bnei Ammon, Moav, and Mt Seir, which were come against Yehudah, and they were struck down.

23 For the Bnei Ammon and Moav stood up against the inhabitants of Mt Seir, utterly to slay and destroy them. And when they had made an end of the inhabitants of Seir, every one helped to destroy another.