Whenever Christians cite the their faith in support of some unpopular moral view, objectors often turn to a well worn argument. I call it the 'if you don't teach this, you can't teach that' argument. The argument turns on a comparison between the objectionable view in question and some other Christian view or Biblical text. The objector accuses the Christian of cherry-picking his beliefs. One version of the argument suggests that the Christian obeys only parts of his faith that support the objectionable view while not obeying those that appear to support the objector's moral view. The longer the list of Christian beliefs that the Christian does not support, the more effective the argument. And as long as the reader thinks those beliefs are what the Christian ought to believe, the objector remains persuasive. To be sure, a Christian who only seeks to fulfill some of his obligations while ignoring others is not consistently practicing his faith. Although we ...