2 Chronicles 20:22

22 Then, during the time when they were singing and praising, ADONAI brought a surprise attack against the people of 'Amon, Mo'av and Mount Se'ir who had come to fight Y'hudah; and they were defeated.

2 Chronicles 20:22 Meaning and Commentary

2 Chronicles 20:22

And when they began to sing and to praise
They sung more or less all the way they went, from the time they set out, but when they came nearer the enemy, they sung louder and louder: the Lord set ambushments against the children of Ammon, Moab, and Mount
Seir, which came against Judah;
some take them to be their own ambushments, which they set for the destruction of Judah; but the Lord turned them against their own confederates, mistaking them for Jews; so the Vulgate Latin version,

``the Lord turned their ambushments against themselves;''

or rather these were angels, who appeared in the form of the Edomites, and so fell upon the Ammonites and Moabites: and they were smitten;
by them, many of them were destroyed; hence it follows,

2 Chronicles 20:22 In-Context

20 The next morning, they rose early and went out into the T'koa Desert. As they left, Y'hoshafat stood and said, "Listen to me, Y'hudah and you inhabitants of Yerushalayim! "Trust in ADONAI your God, and you will be safe. Trust in his prophets, and you will succeed."

21 After consulting with the people, he appointed those who would sing to ADONAI and praise the splendor of his holiness as they went out ahead of the army, saying, "Give thanks to ADONAI, for his grace continues forever."

22 Then, during the time when they were singing and praising, ADONAI brought a surprise attack against the people of 'Amon, Mo'av and Mount Se'ir who had come to fight Y'hudah; and they were defeated.

23 What happened was that the people of 'Amon and Mo'av began attacking those people who lived by Mount Se'ir, to kill and destroy them completely; and when they had finished off the people from Se'ir, they set to work slaughtering one another.

24 So when Y'hudah reached the watchtower overlooking the desert, they looked toward the horde; and there in front of them were corpses fallen to the ground; none had escaped.