Student Questions: Freedom and Responsibility?

This student question is related to 2 Corinthians 3:16-18--what is the freedom that is being spoken of in this passage?  In working through this question, we must consider, what worldview are we using as we are looking at the world?  What is the essence of the image of God, regenerated in us?  What would be a more helpful word to use when thinking about our own lives, rather than "freedom"?