MPV Commentary

Hezekiah began to reign at twenty-five years old. This statement suggests that he was born when his father Ahaz was around eleven years old. However, it's also possible that Hezekiah started co-ruling with his father during his life, which would have been a common practice among later kings of Israel. If this is the case, Hezekiah may have begun ruling in his early twenties, alongside his father.

The calculation of time can be confusing, but if we consider the years mentioned, it's possible that Ahaz was around twenty-one when he started reigning and seventeen at his death. Meanwhile, Hezekiah might have been born when Ahaz was fourteen years old, which is not uncommon for a young man to become a father in warmer climates.