Chronicles II 20:23

23 Then the children of Ammon and Moab rose up against the dwellers in mount Seir, to destroy and consume them; and when they had made an end of the inhabitants of Seir, they rose up against one another so that they were utterly destroyed.

Chronicles II 20:23 Meaning and Commentary

2 Chronicles 20:23

For the children of Ammon and Moab stood up against the
inhabitants of Mount Seir
Supposing that they had acted a treacherous part by them, and took on the side of their enemies: utterly to slay and destroy them;
as they did: and when they had made an end of the inhabitants of Seir;
so that there were none left of them: everyone helped to destroy one another;
in their confusion mistook one another, either for Edomites or Jews, like the Midianites in the times of Gideon.

Chronicles II 20:23 In-Context

21 And he took counsel with the people, and set appointed men to sing psalms and praises, to give thanks, and sing the holy songs of praise in going forth before the host: and they said, Give thanks to the Lord, for his mercy for ever.
22 And when they began the praise and thanksgiving, the Lord caused the children of Ammon to fight against Moab, and mount Seir that came out against Juda; and they were routed.
23 Then the children of Ammon and Moab rose up against the dwellers in mount Seir, to destroy and consume them; and when they had made an end of the inhabitants of Seir, they rose up against one another so that they were utterly destroyed.
24 And Juda came to the watch-tower of the wilderness, and looked, and saw the multitude, and, behold, all fallen dead upon the earth, not one escaped.
25 And Josaphat and his people went out to spoil them, and they found much cattle, and furniture, and spoils, and precious things: and they spoiled them, and they were three days gathering the spoil, for it was abundant.

The Brenton translation of the Septuagint is in the public domain.