Perhaps orthodoxy is not an either/or phenomenon—for then one is either orthodox or one is not—but rather something like a continuum. To the extent that we participate in the Truth who is God Himself, we are “more” orthodox; and to the extent that we move away from Him, we become “more” heterodox (i.e. tending toward some “other” [hetero-] kind of glory rather than the “right” [ortho-] glory). And so, the drama of heterodoxy and orthodoxy in the life of the Church becomes fundamentally bound to the drama of sin and grace which plays itself out in the soul of every man and every community in the one, holy, catholic and apostolic Church. This being the case, the true remedy for heresy or heterodoxy in the Church is not polemics, polarization or politicization but the therapeutic regiment of grace.
Rightly Understanding Heresy and Its Cure