Chronological notes on the reign of some kings of Israel and Judah:
2 Kings 15:30-31 says that Hosea son of Elah…succeeded him [Pekah] as king in the twentieth year of Jotham son of Uzziah.
2Kings 17:1 says that in the twelfth year of Ahaz king of Judah, Hoshea son of Elah became king of Israel in Samaria, and he reigned nine years. (NIV)
The Bible Knowledge Commentary of the Old Testament, edited by Walvoord and Zuck, ©1985, p.570 gives this explanation;
Ahaz's reign, which began in 744, included 9 years a vice-regent (744-735), 4 years as coregent with his father Jotham (735-732) and 16 years as principal king (732-715)…Hoshea began his reign of 9 years in the 20th year of Jotham (15:30), which was 732 B.C. Jotham's 20 years (750-732) included his 16 year reign (750-735) and 4 years as coregent with Ahaz ((735-732). Jotham's reign from 750 to 732 appears to be 18 or 19 years, but it was considered 20 years because he reigned 18 full years and parts of two other years. |