2 Chronicles 25:25

New Century Version

Amaziah son of Joash, the king of Judah, lived fifteen years after the death of Jehoash son of Jehoahaz, the king of Israel.

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Amaziah son of Joash became king of Judah during the second year Jehoash son of Jehoahaz was king of Israel.

The other things Amaziah did as king, from the beginning to the end, are written in the book of the kings of Judah and Israel.