In his days the Edomites revolted from under the dominion of Judah, and made themselves a king. In his days the Edomites revolted - See on 2 Kings 8:21 (note).
Related Commentaries of 2 Chronicles 21:8
2 Chronicles 21:8
8 In his days the Edomites revolted from under the dominionb of Judah, and made themselves a king.