Read 2 Corinthians 5:6-17
6 So we are always full of courage. We know that as long as we are at home in the body we are away from the Lord’s home. 7For our life is a matter of faith, not of sight. 8We are full of courage and would much prefer to leave our home in the body and be at home with the Lord. 9More than anything else, however, we want to please him, whether in our home here or there. 10For all of us must appear before Christ, to be judged by him. We will each receive what we deserve, according to everything we have done, good or bad, in our bodily life.
11 We know what it means to fear the Lord, and so we try to persuade others. God knows us completely, and I hope that in your hearts you know me as well. 12We are not trying again to recommend ourselves to you; rather, we are trying to give you a good reason to be proud of us, so that you will be able to answer those who boast about people’s appearance and not about their character. 13Are we really insane? It is for God’s sake. Or are we sane? Then it is for your sake.
14We are ruled by the love of Christ, now that we recognize that one man died for everyone, which means that all share in his death. 15He died for all, so that those who live should no longer live for themselves, but only for him who died and was raised to life for their sake.
16 No longer, then, do we judge anyone by human standards. Even if at one time we judged Christ according to human standards, we no longer do so. 17Anyone who is joined to Christ is a new being; the old is gone, the new has come. 
2 Corinthians 4:16 is the beginning of this argument: "...our inner nature is being renewed day by day."
2 Corinthians 5:17 "...if anyone is in Christ, there is a new creation."
Paul explains how God works to transform people from the inside out.
Lord help me to open my heart to you more and more each day so that you can complete the work that you have begun in me.