3. But it is to approve the baptism of heretics and schismatics, to admit that they have truly baptized. For therein a part cannot be void, and part be valid. If one could baptize, he could also give the Holy Spirit. But if he cannot give the Holy Spirit, because he that is appointed without is not endowed with the Holy Spirit, he cannot baptize those who come; since both baptism is one and the Holy Spirit is one, and the Church founded by Christ the Lord upon Peter, by a source and principle of unity, is one also. Hence it results, that since with them all things are futile and false, nothing of that which they have done ought to be approved by us. For what can be ratified and established by God which is done by them whom the Lord calls His enemies and adversaries? setting forth in His Gospel, “He that is not with me is against me; and he that gathereth not with me, scattereth.” And the blessed Apostle John also, keeping the commandments and precepts of the Lord, has laid it down in his epistle, and said, “Ye have heard that antichrist shall come: even now there are many Antichrists; whereby we know that it is the last time. They went out from us, but they were not of us; for if they had been of us, no doubt they would have continued with us.” Whence we also ought to gather and consider whether they who are the Lord’s adversaries, and are called antichrists, can give the grace of Christ. Wherefore we who are with the Lord, and maintain the unity of the Lord, and according to His condescension administer His priesthood in the Church, ought to repudiate and reject and regard as profane whatever His adversaries and the antichrists do; and to those who, coming out of error and wickedness, acknowledge the true faith of the one Church, we should give the truth both of unity and faith, by means of all the sacraments of divine grace. We bid you, dearest brethren, ever heartily farewell.