Christians must become independent thinkers with the tools to think critically about diverse points of view—weighing the evidence and judging the validity of arguments. “The one who states his case first seems right, until the other comes and examines him” (Prov. 18:17). Christians must learn to examine both sides in order to develop “sales resistance” to the many dubious ideas hawked in the media, politics, education, entertainment, and yes, churches.