Christianity is NOT a religion; it is the proclamation of the end of religion. Religion is a human activity dedicated to the job of reconciling God to humanity and humanity to itself. The Gospel, however - the Good News of our Lord and Savior, Jesus Christ, is the astonishing announcement that God has done the whole work of reconciliation without a scrap of human assistance. It is the bizarre proclamation that religion is over - period.
Every man has been brought up with the idea that decent women don't pop in and out of bed; he has always been told by his mother that "nice girls don't. " He finds, of course, when he gets older that this may be untrue-but only in a certain section of society.