On Faith With and Without Writing

St. Gregory the Theologian ca. 329-389

I desire to learn what is this fashion of innovation in things Concerning the Church, which allows anyone who likes, or the passerby, as the Bible says, to tear asunder the flock that has been well led, and to plunder it by larcenous attacks, or rather by piratical and fallacious teachings. For if our present assailants had any ground for condemning us in regard of the faith, it would not have been right for them, even in that case, to have ventured on such a course without giving us notice. They ought rather to have first persuaded us, or to have been willing to be persuaded by us (if at least any account is to be taken of us as fearing God, labouring for the faith, and helping the Church), and then, if at all, to innovate; but then perhaps there would be an excuse for their outrageous conduct. But since our faith has been proclaimed, both in writing and without writing, here and in distant parts, in times of danger and of safety, how comes it that some make such attempts, and that others keep silence? (Epistle 101: To Cledonius)