At an early age of eight years, Josiah began his reign in Jerusalem. 2 Kings 22 says that he did what was right in the eyes of the Lord even before he found the Book of the Law. The Bible says that he walked in all the ways of David, and did not turn aside.
At age eighteen, Josiah sent men to Hilkiah the high priest for an assessment of the money collected from the people. He wanted to use that money to pay workers to repair the House of the Lord. Josiah trusted them to the point that the money given to them was given freely without any accounting.
While going through this process, Hilkiah the high priest told Josiah's secretary that he had found the Book of the Law in the house of the Lord. He gave it to the secretary, and the secretary read it.
When the secretary returned to king Josiah, he told the king all that was done concerning the house of the Lord. Then, he told king Josiah about the Book.
As the secretary read the book to the king, Josiah rent his clothes. He immediately sent men to the house of the Lord to inquire what God would say concerning the words of the Book of the Law. He said, "Great wrath of the Lord is kindled against us, because our fathers have not obeyed the words of this book."
So they quickly went to Huldah the prophetess, who lived in Jerusalem. They asked her to receive Word from the Lord.
She said, "Thus saith the Lord, the God of Israel. Tell the man who sent you to me that Thus Saith The Lord, behold I will bring disaster upon this place and upon its inhabitants, all the words of the book that the king of Judah has read. Because they have forsaken me and made offerings to other gods, that they might provoke me to anger with all the work of their hands, therefore my wrath will be kindled upon this place, and it will not be quenched. But to the king of Judah, who sent you to inquire of the Lord, you will say, 'Thus saith the Lord, the God of Israel: Regarding the words you have heard, because your heart was penitent, and you humbled yourself before the Lord, when you heard how I spoke against this place and against its inhabitants, that they should become a desolation and a curse, and you have torn your clothes and wept before me, I also have heard you, declares the Lord. 20 Therefore, behold, I will gather you to your fathers, and you shall be gathered to your grave in peace, and your eyes shall not see all the disaster that I will bring upon this place.'" And they brought back word to the king.'"
So, from Huldah the prophetess, they returned to the king with Word from the Lord.
As Christians, we should ask ourselves: Have we discovered the Word of the Lord? Is it on a shelf collecting dust, one day to be discovered? When we read it, do we humble ourselves before God for the sins we daily commit? Once we learn of our sin, do we patiently read the Word and wait on His instruction for our lives? When we receive instruction, do we act upon it? Are we like Josiah who walked in the way of the Lord, or his fathers who walked in the ways of baal?