Check out what I read in Portable Atheist, from Bertrand Russell's An Outline of Intellectual Rubbish:
"There are logical difficulties in the notion of sin. We are told that sin consists in disobedience to God's commands, but we are also told that God is omnipotent. If He is, nothing contrary to His will can occur; therefore when the sinner disobeys His commands, He must have intended this to h…