The ouster of Liberty University president Jerry Falwell Jr. over allegations of sexual misconduct and other behavior that falls short of the university's code of conduct -- not to mention Scripture -- is another in a long list of lessons each generation of Christians seems to have to learn anew. In our 1999 book, "Blinded by Might: Why the Religious Right Can't Save America," the late Dr. Edward Dobson and I -- he a former dean of students at Liberty and me for a brief time vice president of Moral Majority -- warned about the dangers we had observed when...