I would say that belief in at least three tenets is necessary to the faith of a Christian: a belief in God, a belief in immortality, and a belief in a supernatural book. Various Christian sects require much more, but it is difficult to imagine that one could be a Christian, under any intelligent meaning of the word, with less. Yet there are some people who claim to be Christians who do not accept the literal interpretation of all the Bible, and who give more credence to some portions of the…