Sometimes when we get a good grasp on the Bible we may think that we know it all. We stop studying Scripture or paying attention in church because we think we already know this stuff. Paul acknowledges that God gives us wisdom and knowledge of Him through His Spirit. It is by the Spirit that we come to know Jesus, and it is through the Spirit that we continue to grow. We have an infinite glass to fill when it comes to spiritual growth. Just because we know a Bible story, this does not mean that we don't need to read it again. The Spirit shows us new things every time we read it, thus meaning that you do not know it all. The Christian life is one of constant growth in our knowledge and relationship with Christ, and we will never know it all. If this is your attitude, pick up your Bible, and I guarantee the Spirit will show you something you had not thought of before.