c. 370–419 · Jerome, Letters 42.1
Now if Novatian affirms that none but Christian renegades can sin against the Holy Ghost, it is plain that the Jews who blasphemed Christ were not guilty of this sin. Yet they were wicked husbandmen, they had slain the prophets, they were then compassing the death of the Lord; and so utterly lost were they that the Son of God told them that it was they whom he had come to save. It must be proved to Novatian, therefore, that the sin which shall never be forgiven is not the blasphemy of men disembowelled by torture who in their agony deny their Lord, but is the captious clamor of those who, while they see that God’s works are the fruit of virtue, ascribe the virtue to a demon and declare the signs wrought to belong not to the divine excellence but to the devil. And this is the whole gist of our Saviour’s argument, when He teaches that Satan cannot be cast out by Satan, and that his kingdom is not divided against itself. If it is the devil’s object to injure God’s creation, how can he wish to cure the sick and to expel himself from the bodies possessed by him? Let Novatian prove that of those who have been compelled to sacrifice before a judge’s tribunal any has declared of the things written in the gospel that they were wrought not by the Son of God but by Beelzebub, the prince of the devils; and then he will be able to make good his contention that this is the blasphemy against the Holy Ghost which shall never be forgiven.