Joshua Harris's well-known 1997 Christian book, I Kissed Dating Goodbye, shaped the relationships and sexual ethics of many of the young people who read it. In recent years, Harris has apologized for the impact of his book, which he now regards as largely negative. Earlier this summer, it emerged that Harris has separated from his wife and no longer considers himself a Christian. Marty Sampson was a worship leader and singer-songwriter with Hillsong United, a band born at Hillsong church in Sydney that routinely topped the Christian charts worldwide. He recently wrote an Instagram post announcing the deconstruction of his faith. Bart and John discuss both.