211 Jehoshaphat slept with his fathers and was buried with his fathers in the city of David, and Jehoram his son reigned in his place. 2 He had brothers, the sons of Jehoshaphat: Azariah, Jehiel, Zechariah, Azariah, Michael, and Shephatiah; all these were the sons of Jehoshaphat king of Israel.[1] 3 Their father gave them great gifts of silver, gold, and valuable possessions, together with fortified cities in Judah, but he gave the kingdom to Jehoram, because he was the firstborn. 4 When Jehoram had ascended the throne of his father and was established, he killed all his brothers with the sword, and also some 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.