Retired Episcopal Bishop John Shelby Spong presents a provocative idea in his latest book. Reading the Bible literally, he says, is heresy. He bases his argument on a close reading of the Gospel of Matthew, which he argues was written by Jews for Jews. Spong says the gospel was not written as a literal account of Christ’s life, but rather as an interpretative portrait of God’s love. Spong joins us Friday to talk about biblical literalism and his uniquely progressive approach to Christianity.