There's a chapter in CS Lewis' book "Mere Christianity" called "Nice people or New men." It is basically discussing the idea that if people are Christians, shouldn't they be nicer than non Christians. There is definitely some theology in this chapter that I disagree with...namely the thoughts about God' s inability to change our will. However, I do like the way he phrases some things about the changes God does bring about.
Listen to this: "... mere improvement is not redemption... God became a man to turn creatures into sons: not simply to produce better men of the old kind but to produce a new kind of man. It is not like teaching a horse to jump better and better but like turning a horse into a winged creature. Of course, 0nce it has wings, it will soar over fences which could never have been jumped and thus beat the natural horse at its own game. But there may be a period, while the wings are beginning to grow, when it cannot do so: and at that stage the lumps on his shoulders may even give it an awkward appearance." page 216 Mere Christianity
I think this reminds me of the fact that Christianity is not about taking bad people and making them good... it's about taking dead people and making them alive.
