מלכים ב, פרק ט״ו, פסוק ב׳

A remarkably long royal reign often masks the complex realities of how power was actually transferred from one generation to the next. The fifty-two years of this king's leadership do not represent a continuous period of ruling entirely on his own. The primary approach among commentators is that this extensive timeframe is split into two distinct phases, offering a clear picture of royal succession in that era. For the first fifteen years, he shared the throne, ruling alongside his father who was still alive. It was only after his father passed away that he assumed full, independent control, governing by himself for the remaining thirty-seven years.