8 In the time of Jehoram, Edom rebelled against Judah and set up its own king. 9 So Jehoram went there with his officers and all his chariots. The Edomites surrounded him and his chariot commanders, but he rose up and broke through by night. 10 To this day Edom has been in rebellion against Judah. Libnah revolted at the same time, because Jehoram had forsaken the Lord, the God of his ancestors.

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.