David was thirty years old when he began to reign, and he reigned forty years.
King James Version (KJV) - 2 Samuel 5:4 >¶ David [was] thirty years old when he began to reign, [and] he reigned forty years.
Berean Study Bible (BSB) - 2 Samuel 5:4 >David was thirty years old when he became king, and he reigned forty years.