“Christians are ‘called to resist’ Trump.” So read the headline accompanying a polemic authored by Rev. Dr. David Gushee, Director of the Center for Theology and Public Life at Mercer University in Georgia. It was published this past week by Religion News Service, which provides left-of-center religious news and commentary to more than 100 media outlets, including the Washington Post, Chicago Tribune and Huffington Post. The “call” to which Gushee referred is a statement (which he helped draft) that was released last month by “a multiracial group of Christian ministers and scholars.” The group condemns Donald Trump, they say, because...