What I say is based on my faith, and the word of God--namely that we are new creatures in Christ. Our behavior changes, moreover, our very soul changes. I am not making this up--it is at the heart of what billions of Christians believe. Moreover, it is cited again and again in scripture. From a personal standpoint, I will tell you I am a very different person than who I was before I became a Christian.
But let me ask you this Modernman. Let us say you are walking down a city street at night, alone. Suddenly, a doorway opens, and eight young men walk through it and begin to walk right behind you.
Would it matter to you at that moment if you knew they had all just left a bible study?
That question was posed by Dr. Ravi Zacharias to an atheist Ohio University professor he was debating. The professor answered (quite honestly) that yes, he would have been relieved knowing that fact. Why? He said that while he did not believe in this God they professed, he had found Christians to be "overall different in the manner and morality than non-Christians, although not for the reasons they believe."
Christ asks for our very hearts. Only you can make that decision to give it freely, or not.