Pope Pelagius II, “Quod ad dilectionem” to the schismatic bishops of Istria, about 585: “...we have judged it necessary through our present epistle to exhort with tears that you should return to the heart of your mother the Church, and to send you satisfaction with regard to the integrity of faith. . . . If anyone, however, either suggests or believes or presumes to teach contrary to this faith, let him know that he is condemned and also anathematized according to the opinion of the same Fathers. . . . Consider (therefore) the fact that whoever has not been in the peace and unity of the Church, cannot have the Lord [Gal. 3:7].”