2 Chronicles 21:3-5

New Revised Standard Version, Anglicised

³ Their father gave them many 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 put all his brothers to the sword, and also some of the officials of Israel. ⁵ Jehoram was thirty-two years old when he began to reign; he reigned for eight years in Jerusalem.