St. Maximos the Confessor: Even if the whole universe holds communion with the [heretical] Patriarch . . .

Icon of St. Maximos the ConfessorEven if the whole universe holds communion with the [Latinizing] Patriarch, I will not communicate with him. For I know from the writings of the holy Apostle Paul: the Holy Spirit declares that even the angels would be anathema if they should begin to preach another Gospel, introducing some new teaching.

+ St. Maximos the Confessor, The Life of Our Holy Father St. Maximus the Confessor (Boston: Holy Transfiguration, 1982)