דברי הימים ב, פרק כ״ד, פסוק א׳

A child assuming the highest seat of power is a rare event that shapes the future of a kingdom. Joash became king at just seven years old, beginning a long and complex reign. His youth at the time of his coronation points directly back to his tragic early childhood. Because he had been kept in hiding for six years, he was only a one-year-old toddler when his grandmother killed the rest of the royal family [ביאור שטיינזלץ].

Joash went on to govern for forty years. When evaluating these four decades of leadership, two different perspectives emerge. The Book of Kings portrays him as a righteous leader throughout his entire life. However, the Book of Chronicles, traditionally authored by Ezra, provides a more complete picture. It clarifies that the king's dedication to doing what was right only lasted while Jehoiada the priest was alive. Once the priest passed away, Joash strayed from his righteous path and sinned [מלבי״ם].