126. Augustine answered: We acknowledge the word of the Lord. Hence also the apostle says, "Though I have all faith, so that I could remove mountains, and have not charity, I am nothing."[857] Here therefore we must inquire who it is that has charity: you will find that it is no one else but those who are lovers of unity. For as to the driving out of devils, and as to the working of miracles, seeing that very many do not do such things who yet belong to the kingdom of God, and very many do them who do not belong to it, neither our party nor your party have any cause for boasting, if any of them chance to have this power, since the Lord did not think it right that even the apostles, who could truly do such things both to profit and salvation, should boast in things like this, when He says to them, "In this rejoice not, that the spirits are subject unto you; but rather rejoice, because your names are written in heaven."[858] Wherefore all those things which you have advanced from the writings of the gospel I also might repeat to you, if I saw you working the powerful acts of signs and miracles; and so might you repeat them to me, if you saw me doing things of a like sort. Let us not, therefore, say one to another what may equally be said on the other side as well; and, putting aside all quibbles, since we are inquiring where the Church of Christ is to be found, let us listen to the words of Christ Himself, who redeemed it with His own blood: "Ye shall be witnesses unto me both in Jerusalem, and in all Judea, and in Samaria, and unto the uttermost part of the earth."[859] You see then who it is with whom a man refuses to communicate who will not communicate with this Church, which is spread throughout all the world, if at least you hear whose words these are. For what is a greater proof of madness than to hold communion with the sacraments of the Lord, and to refuse to hold communion with the words of the Lord? Such men at any rate are likely to say, In Thy name have we eaten and drunken, and to hear the words, "I never knew you,"[860] seeing that they eat His body and drink His blood in the sacrament, and do not recognise in the gospel His members which are spread abroad throughout the earth, and therefore are not themselves counted among them in the judgment.
Chap. lvi.—127. Petilianus said: "But even if, as you yourselves suppose, you are following the law of the Lord in purity, let us nevertheless consider the question of the most holy law itself in a legal form. The Apostle Paul says, 'The law is good, if a man use it lawfully.'[861] What then does the law say? 'Thou shalt not kill.' What Cain the murderer did once, you have often done, in slaying your brethren."
128. Augustine answered: We do not wish to be like you: for there are not wanting words which might be uttered, as you too utter these; and known also, for you do not know these; and set forth in the conduct of a life, as these are not set forth by you.
Chap. lvii.—129. Petilianus said: "It is written, 'Thou shalt not commit adultery.' Each one of you, even though he be chaste in his body, yet in spirit is an adulterer, because he pollutes his holiness."
130. Augustine answered: These words also might be spoken with truth against certain both of our number and of yours; but if their deeds are condemned by us and you alike, they belong to neither us nor you. But you wish that what you say against certain men, without proving it even in their especial case, should be taken just as if you had established it,—not in the case of some who have fallen away from the seed of Abraham, but in reference to all the nations of the earth who are blessed in the seed of Abraham.
Chap. lviii.—131. Petilianus said: "It is written, 'Thou shalt not bear false witness against thy neighbour.' When you falsely declare to the kings of this world that we hold your opinions, do you not make up a falsehood?"
132. Augustine answered: If those are not our opinions which you hold, neither were they your opinions which you received from the followers of Maximianus. But if they were therefore yours, because they were guilty of a sacrilegious schism in not communicating with the party of Donatus, take heed what ground you occupy, and with whose inheritance you refuse communion, and consider what answer you can make, not to the kings of this world, but to Christ your King. Of Him it is said, "He shall have dominion also from sea to sea, and from the river unto the ends of the earth."[862] From what river does it mean, save that where He was baptized, and where the dove descended on Him, that mighty token of charity and unity? But you refuse communion with this unity, and occupy as yet the place of unity; and you bring us into disfavour with the kings of this world in making use of the edicts of the proconsul to expel your schismatics from the place of the party of Donatus. These are not mere words flying at random through the empty void: the men are still alive, the states bear witness to the fact, the archives of the proconsuls and of the several towns are quoted in evidence of it. Let then the voice of calumny be at length silent, which would bring up against the whole earth the kings of this world, through whose proconsuls you, yourselves a fragment, would not spare the fragment which was separated from you. When then we say that you hold our opinions, we are not shown to be bearing false witness, unless you can show that we are not in the Church of Christ, which indeed you never cease alleging, but never will be able to establish; nay, in real truth, when you say this, you are bringing a charge of false witness no longer against us, but against the Lord Himself. For we are in the Church which was foretold by His own testimony, and where He bore witness to His witnesses, saying, "Ye shall be witnesses unto me both in Jerusalem, and in all Judea, and in Samaria, and unto the uttermost part of the earth." But you show yourselves to be false witnesses not only from this, that you resist this truth, but also in the very trial in which you joined issue with the schism of Maximianus. For if you were acting according to the law of Christ, how much more consistently do certain Christian emperors frame ordinances in accordance with it, if even pagan proconsuls can follow its behests in passing judgment? But if you thought that even the laws of an earthly empire were to be summoned to your aid, we do not blame you for this. It is what Paul did when he bore witness before his adversaries that he was a Roman citizen.[863] But I would ask by what earthly laws it is ordained that the followers of Maximianus should be driven from their place? You will find no law whatever to this effect. But, in point of fact, you have chosen to expel them under laws which have been passed against heretics, and against yourselves among their number. You, as though by superior strength, have prevailed against the weak. Whence they, being wholly powerless, say that they are innocent, like the wolf in the power of the lion. Yet surely you could not use laws which were passed against yourselves as instruments against others, except by the aid of false witness. For if those laws are founded on truth, then do you come down from the position which you occupy; but if on falsehood, why did you use them to drive others from the Church? But how if they both are founded on truth, and could not be used by you for the expulsion of others except with the aid of falsehood? For that the judges might submit to their authority, they were willing to expel heretics from the Church, from which they ought first to have expelled yourselves; but you declared yourselves to be Catholics, that you might escape the severity of the laws which you employed to oppress others. It is for you to determine what you appear to yourselves among yourselves; at any rate, under those laws you are not Catholics. Why then have you either made them false, if they are true, by your false witness, or made use of them, if they are false, for the oppression of others?