18 Finally, when, after the resurrection, the apostles are sent by the Lord to the heathens, they are bidden to baptize the Gentiles “in the name of the Father, and of the Son, and of the Holy Ghost.” How, then, do some say, that a Gentile baptized without, outside the Church, yea, and in opposition to the Church, so that it be only in the name of Jesus Christ, everywhere, and in whatever manner, can obtain remission of sin, when Christ Himself commands the heathen to be baptized in the full and united Trinity?
Unless while one who denies Christ is denied by Christ, he who denies His Father whom Christ Himself confessed is not denied; and he who blasphemes against Him whom Christ called His Lord and His God, is rewarded by Christ, and obtains remission of sins, and the sanctification of baptism! But by what power can he who denies God the Creator, the Father of Christ, obtain, in baptism, the remission of sins, since Christ received that very power by which we are baptized and sanctified, from the same Father, whom He called “greater” than Himself, by whom He desired to be glorified, whose will He fulfilled even unto the obedience of drinking the cup, and of undergoing death?
What else is it then, than to become a partaker with blaspheming heretics, to wish to maintain and assert, that one who blasphemes and gravely sins against the Father and the Lord and God of Christ, can receive remission of sins in the name of Christ? What, moreover, is that, and of what kind is it, that he who denies the Son of God has not the Father, and he who denies the Father should be thought to have the Son, although the Son Himself testifies, and says, “No man can come unto me except it were given unto him of my Father?” So that it is evident, that no remission of sins can be received in baptism from the Son, which it is not plain that the Father has granted. Especially, since He further repeats, and says, “Every plant which my heavenly Father has not planted shall be rooted up.”
Source: The Epistles of Cyprian (New Advent)