2 He was twenty-five years old when he began to reign; and he reigned twenty-nine years in Jerusalem: and his mother's name was Jehoaddin of Jerusalem.
*Minor differences ignored. Grouped by changes, with first version listed as example.
Joash of Judah reigned forty years 2-Kings 12:1, and Joash of Israel ascended the throne in his namesake's thirty-seventh year 2-Kings 13:10; hence, we should have expected to hear that Amaziah succeeded his father in the fourth rather than in the second year of Joash (of Israel). The usual explanation of the discrepancy is to suppose a double accession of the Israelite Joash - as co-partner with his father in the thirty-seventh year of his namesake, as sole king two years afterward.
He was twenty and five years old when he began to reign, and reigned twenty and nine years in Jerusalem,.... Fourteen years contemporary with Joash king of Israel, who reigned sixteen years, 2-Kings 13:10 and fifteen after him, 2-Kings 14:17,
and his mother's name was Jehoaddan of Jerusalem; of whom we nowhere else read,
*More commentary available at chapter level.