The central Christian belief is that Christ's death has somehow put us right with God and given us a fresh start. Theories as to how it did this are another matter. A good many different theories have been held as to how it works; what all Christians are agreed on is that it does work.
C. S. LewisEach time you fall He'll pick you up. He knows your own efforts are never going to bring you anywhere near perfection
C. S. LewisThe instrument through which you see God is your whole self. And if a man's self is not kept clean and bright, his glimpse of God will be blurred
C. S. Lewis