8. If, therefore, by such communion with the wicked the just cannot but perish, the Church had already perished in the time of Cyprian. Whence then sprang the origin of Donatus? where was he taught, where was he baptized, where was he ordained, since the Church had been already destroyed by the contagion of communion with the wicked? But if the Church still existed, the wicked could do no harm to the good in one communion with them. Wherefore did ye separate yourselves? Behold, I see in unity Cyprian and others, his colleagues, who, on holding a council, decided that those who have been baptized without the communion of the Church have no true baptism, and that therefore it must be given them when they join the Church. But again, behold I see in the same unity that certain men think differently in this matter, and that, recognising in those who come from heretics and schismatics the baptism of Christ, they do not venture to baptize them afresh. All of these catholic unity embraces in her motherly breast, bearing each other's burdens by turns, and endeavouring to keep the unity of the Spirit in the bond of peace,[81] till God should reveal to one or other of them any error in their views. If the one party held the truth, were they infected by the others, or no? If the others held the truth, were they infected by the first, or no? Choose which ye will. If there was contamination, the Church even then ceased to exist; answer me, therefore, whence came ye forth hither? But if the Church remained, the good are in no wise contaminated by the bad in such communion; answer me, therefore, why did ye break the bond?