within the church, within groups that call themselves “Christian” but which actually preach a different gospel. In speaking of the possibility that sincere believers could be deceived into believing a different gospel, we are not referring to the legitimate doctrinal differences that exist among Christians. What Paul was referring to in Gal. 1:6–9 was much more than that. This different gospel was not just “another” organic variety of the same gospel; the meaning of the Greek words indicates that