Second Council of Constantinople On Automatic Anathema

Second Council of Constantinople, Sess. 8, AD 553: “… ‘Even if we ourselves or an angel from Heaven were to preach to you a gospel contrary to the one we preached to you, let him be anathema’ [Gal. 1:8]… When the Lord says ‘he has been judged already’ [John 3:18] and the apostle anathematizes even angels if they were to teach ‘contrary to what we have preached’ [Gal. 1:8], how can they, who have the effrontery for everything, have the presumption to assert that these things were said only about the living? Or do they not know, or rather do they pretend not to know when in fact they do, that a judgment of anathema is nothing other than separation from God, that the impious person, even if he has not received it verbally from another, yet in reality brings anathema on himself when through his impiety he separates himself from the true Life?”