The answer is: 8 years

2 Kings 22:1

Josiah becoming king at just 8 years old is pretty fascinating! Can you imagine that? A child on the throne of Jerusalem, taking the reins in a time of moral and spiritual decay! His age highlights not just the tenuous nature of leadership in those ancient times, but also the deep connection between youth and the capacity for reform. The backdrop of his reign includes a mix of chaos and corruption, and it makes his later reforms even more remarkable.

Trivia Time: Josiah was part of a challenging hereditary line, succeeding his father Amon, who famously indulged in idolatry. You see, Josiah became king in 640 BCE during a period when the Jewish people struggled with faithfulness, often swayed by surrounding nations. Yet this young ruler surprised everyone. He began to seek the Lord in his youth and would later be responsible for discovering the Book of the Law! It’s believed this scroll dramatically transformed the nation's practices once it was rediscovered in the temple.

Interestingly, Josiah's reforms are considered the peak of Israel's religious revitalization, reminding us how leadership can stem from the most unexpected places! His story encourages a bend towards meaningful reform and faith among communities, where youth can play a pivotal role, bringing hope and ultimately, restoration. The resonance of Josiah’s story rings true through generations, emphasizing the impact of faith-driven leadership.