211 And Jehoshaphat slept with his fathers, and was buried with his fathers in the city of David: and Jehoram his son reigned in his stead. 2 And he had brethren, the sons of Jehoshaphat: Azariah, and Jehiel, and Zechariah, and Azariah, and Michael, and Shephatiah; all these were the sons of Jehoshaphat king of Israel. 3 And their father gave them great gifts, of silver, and of gold, and of precious things, with fortified cities in Judah: but the kingdom gave he to Jehoram, because he was the first-born. 4 Now when Jehoram was risen up over the kingdom of his father, and had strengthened himself, he slew all his brethren with the sword, and divers also of the princes of Israel.
Matthew Henry's Commentary on 2 Chronicles 21:1-4
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.