1.
“And in the twentieth year of Jeroboam king of Israel reigned Asa over Judah” (1 Kings xv, 9).
As Jeroboam reigned twenty-two years, he reigned two years after Asa became king. From the commencement of Asa’s reign, then, to the death of Ahaziah, the reigns of Israel’s kings were as follows: Jeroboam 2 years, Nadab 2 years, Baasha 24 years, Elah 2 years, Omri 12 years, Ahab 22 years, and Ahaziah 2 years. 2 years + 2 years + 24 years + 2 years + 12 years + 22 years + 2 years = 66 years.
As Asa reigned forty-one years and Jehoshaphat reigned twenty-five years, from the commencement of Asa’s reign to the death of Jehoshaphat was 41 years + 25 years = 66 years.
If from the commencement of Asa’s reign to the death of Ahaziah was sixty-six years, and from the commencement of Asa’s reign to the death of Jehoshaphat was sixty-six years, Jehoshaphat therefore died in the same year that Ahaziah died.