The debate over heresy is a struggle to specify the legitimate boundaries of the worshiping community. That it is a necessary struggle is widely acknowledged: even tolerationists who rule the word heresy out of bounds (as if it were alien to polite discourse) are themselves asserting a boundary. Absurdly, they are implicitly ascknowledging the need for boundary-definition in ruling boundary-making out of bounds!The Rebirth of Orthodoxy, 131