8 In his days Edom revolted from the rule of Judah, and set up a king of their own. 9 Then Jeho'ram passed over with his commanders and all his chariots, and he rose by night and smote the E'domites who had surrounded him and his chariot commanders. 10 So Edom revolted from the rule of Judah to this day. At that time Libnah also revolted from his rule, because he had forsaken the Lord, the God of his fathers.
Matthew Henry's Commentary on 2 Chronicles 21:8-10
Commentary on 2 Chronicles 21:1-11
(Read 2 Chronicles 21:1-11)
Jehoram hated his brethren, and slew them, for the same reason that Cain hated Abel, and slew him, because their piety condemned his impiety. In the mystery of Providence such men sometimes prosper for a time; but the Lord has righteous purposes in permitting such events, part of which may now be made out, and the rest will be seen hereafter.