"...and in your moral excellence, knowledge" 2 Peter 1:5

The third quality Peter tells us to add is knowledge. When we think of knowledge we think of learning, studying, understanding. It may remind us of education, going through school and classes, trying to grasp a certain subject. When we were younger, to gain knowledge we had teachers, homework, quizzes and tests. We would crack open the books and spend hours reading, taking notes. Growing in knowledge doesn't just happen, but requires work. You learn through studying, practicing, doing; knowledge requires effort! 

Peter would later write in this same book that we ought to grow in the grace and knowledge of our Lord and Savior Jesus Christ (2 Peter 3:18). Knowledge of Jesus helps us in our goal of becoming more like Him (Romans 8:29). Learning more of Jesus helps us learn more about God's will, of what it means to be obedient to the Father. We learn more of our purpose. We learn about our hope, and how Jesus sacrificed Himself for us, out of His great love for us (Romans 5:8). When we're learning more of the Bible, and spending time meditating on God's words we will be strengthened like the tree in Psalm 1, firmly planted by the streams of water. 

So how is your knowledge? Do you know much of the Bible? Can you point out the book, chapter, verse for salvation? What about proving Jesus is the Son of God? The way to grow deeper in our knowledge is to actively seek to learn the Bible. This will require time reading, studying, asking questions and seeking answers. Go to Bible classes and studies and soak in as much as you can. Write down in notepads what you're learning. This knowledge that you are acquiring is the knowledge the world needs to know; the knowledge which leads to salvation (James 1:21).