And it came to pass, when the king had heard the words of the law, that he rent his clothes. 2 Chronicles 34:19 

Josiah was a good King. He lived for God. He fought sin and did not worship idols. However, he still was shocked and convicted when he read the Word of God. I think that the same is true for us today. I can be a good Christian in the eyes of others but never read the Bible. When I do I will be shocked at what I missed. I need the Word of God daily in my life! I need His Word more than anything else!