Saturninus of Victoriana said: If heretics may baptize, they who do unlawful things are excused and defended; nor do I see why either Christ should have called them adversaries, or the apostle should have called them Antichrists.
Saturninus of Thucca said: The Gentiles, although they worship idols, do yet know and confess a supreme God as Father and Creator. Against Him Marcion blasphemes, and some persons do not blush to approve the baptism of Marcion. How do such priests either observe or vindicate God's priesthood, who do not baptize God's enemies, and hold communion with them as they are!
Marcellus of Zama said: Since sins are not remitted save in the baptism of the Church, he who does not baptize a heretic holds communion with a sinner.
Irenaeus of Ululi said: If the Church does not baptize a heretic, for the reason that he is said to be already baptized, it is the greater heresy.
Donatus of Cibaliana said: I know one Church and her one baptism. If there is any who says that the grace of baptism is with heretics, he must first show and prove that the Church is among them.
Zosimus of Tharassa said: When a revelation of the truth is made, let error give place to truth; because Peter also, who previously circumcised, yielded to Paul when he preached the truth.
Julianus of Telepte said: It is written, “No man can receive anything unless it have been given him from heaven.” If heresy is from heaven, it can also give baptism.
Faustus of Timida Regia said: Let not them who are in favour of heretics flatter themselves. He who interferes with the baptism of the Church on behalf of heretics, makes them Christians, and us heretics.
Geminius of Furni said: Some of our colleagues may prefer heretics to themselves, they cannot to us: and therefore what we have once determined we maintain— that we baptize those who come to us from the heretics.
Rogatianus of Nova said: Christ instituted the Church; the devil, heresy. How can the synagogue of Satan have the baptism of Christ?
Therapius of Bulla said: He who concedes and betrays the Church's baptism to heretics, what else has he been to the spouse of Christ than a Judas?
Also another Lucius of Membresa said: It is written, “God hears not a sinner.” How can a heretic who is a sinner be heard in baptism?
Also another Felix of Bussacene said: In the matter of receiving heretics without the baptism of the Church, let no one prefer custom to reason and truth, because reason and truth always exclude custom.
Another Saturninus of Avitini said: If Antichrist can give to any one the grace of Christ, heretics also are able to baptize, for they are called antichrists.
Quintus of Aggya: He can give something who has something. But what can heretics give, who, it is plain, have nothing?
Another Julianus of Marcelliana said: If a man can serve two masters, God and mammon, baptism also can serve two masters, the Christian and the heretic.
Tenax of Horrea Caeliae said: Baptism is one, but it is the Church's. Where the Church is not there, there can be no baptism.
Another Victor of Assuri said: It is written, that “God is one, and Christ is one, and the Church is one, and baptism is one.” How, therefore, can any one be baptized there, where God, and Christ, and the one Church is not?
Donatulus of Capse said: And I also have always thought this, that heretics, who can obtain nothing without the Church, when they are converted to the Church, must be baptized.
Verulus of Rusiccada said: A man who is a heretic cannot give what he has not; much more a schismatic, who has lost what he once had.
Pudentianus of Cuiculis said: The novelty of my episcopal office, beloved brethren, has caused me to await what my elders should judge. For it is manifest that heresies have nothing, nor can have any thing. And thus, if any one comes from them, it is most justly decreed that they must be baptized.
Peter of Hippo Diarrhytus said: Since there is one baptism in the Catholic Church, it is manifest that one cannot be baptized outside the Church. And therefore I judge that those who have been dipped in heresy or in schism, when they come to the Church, should be baptized.
Also another Lucius of Ausafa said: According to the direction of my mind, and of the Holy Spirit, as there is one God and Father of our Lord Jesus Christ, and one Christ, and one hope, and one Spirit, and one Church, there ought also to be one baptism. And therefore I say, that if any thing had been set on foot or accomplished by heretics, it ought to be rescinded, and that those who come thence must be baptized in the Church.
Also another Felix of Gurgites said: I judge that, according to the precepts of the holy Scriptures, he who is unlawfully baptized by heretics outside the Church, when he wishes to take refuge in the Church, should obtain the grace of baptism where it is lawfully given.
Pusillus of Lamasba said: I believe that there is no saving baptism except in the Catholic Church. Whatsoever is apart from the Catholic Church is a pretence.
Salvianus of Gazaufala said: It is certain that heretics have nothing, and therefore they come to us that they may receive what they have not.
Honoratus of Thucca said: Since Christ is the Truth, we ought rather to follow truth than custom; so that we should sanctify heretics with the Church's baptism, seeing that they come to us for the reason that they could receive nothing without.
Victor of Octavum said: As yourselves also know, I have not long been appointed a bishop, and I therefore waited for the decision of my predecessors. I therefore think this, that as many as come from heresy should undoubtedly be baptized.
Clarus of Mascula said: The sentence of our Lord Jesus Christ is plain, when He sent His apostles, and accorded to them alone the power given to Him by His Father; and to them we have succeeded, governing the Lord's Church with the same power, and baptizing the faith of believers. And therefore heretics, who neither have power without, nor have the Church of Christ, are able to baptize no one with His baptism.
Secundianus of Thambei said: We ought not to deceive heretics by our presumption; so that they who have not been baptized in the Church of our Lord Jesus Christ, and have not obtained by this means remissions of their sins, when the day of judgment shall come, should impute to us that through us they were not baptized, and did not obtain the indulgence of divine grace. On which account, since there is one Church and one baptism, when they are converted to us they should obtain, together with the Church, the Church's baptism also.
Also another Aurelius of Chullabi said: John the apostle laid it down in his epistle, saying: “If any one come unto you, and have not the doctrine of Christ, receive him not into your house, and say not to him, Hail. For he that says to him, Hail, partakes with his evil deeds.” How can such be rashly admitted into God's house, who are prohibited from being admitted into our private dwelling? Or how can we hold communion with them without the Church's baptism, to whom, if we should only say Hail, we are partakers of their evil deeds?
Litteus of Gemelli said: If the blind lead the blind, both fall into the ditch, Since, then, it is manifest that heretics cannot give light to any, as being themselves blind, their baptism does not avail.
Natalis of Oëa said: As well I who am present, as Pompey of Sabrata, as also Dioga of Leptis Magna — who, absent indeed in body, but present in spirit, have given me charge— judge the same as our colleagues, that heretics cannot hold communion with us, unless they shall be baptized with ecclesiastical baptism.
Junius of Neapolis said: From the judgment which we once determined on I do not recede, that we should baptize heretics who come to the Church.
Cyprian of Carthage said: The letter which was written to our colleague Jubaianus very fully expresses my opinion, that, according to evangelical and apostolic testimony, heretics, who are called adversaries of Christ and Antichrists, when they come to the Church, must be baptized with the one baptism of the Church, that they may be made of adversaries, friends, and of Antichrists, Christians.
Source: The Seventh Council of Carthage (New Advent)