As with any folk hero, the stories became more and more exaggerated as time went on. Paul, not Jesus, was the real inventor of Christianity. The fruit of Paul's letters have been the root of more than three hundred Christian denominations and sects, most of which were formed as a result of disagreement over the correct meaning of Paul's words. For example, as an evangelical Christian, I rejected the Book of Mormon, though it, too, claims to be from God. No one is perfect.
Sin is nothing more than a theological concept which has no basis in reality.
Sin sells religion. No one is going to be punished by God for sins. When I finally accepted this truth, it set me free. Man created God in his own image. I reject that image.