Mark 3:28

(Vict. Ant. e Cat. in Marc.) He says indeed, that blasphemy concerning Himself was pardonable, because He then seemed to be a man despised and of the most lowly birth, but, that contumely against God has no remission. Now blasphemy against the Holy Ghost is against God, for the operation of the Holy Ghost is the kingdom of God; and for this reason, He says, that blasphemy against the Holy Ghost cannot be remitted. Instead, however, of what is here added, But will be in danger of eternal damnation, another Evangelist says, Neither in this world, nor in the world to come. By which is understood, the judgment which is according to the law, and that which is to come. For the law orders one who blasphemes God to be slain, and in the judgment of the second law he has no remission. However, he who is baptized is taken out of this world; but the Jews were ignorant of the remission which takes place in baptism. He therefore who refers to the devil miracles, and the casting out of devils which belong to the Holy Ghost alone, has no room left him for remission of his blasphemy. Neither does it appear that such a blasphemy as this is remitted, since it is against the Holy Ghost. Wherefore he adds, explaining it, Because they said, He hath an unclean spirit.

(in Marc. i. 17) But the Lord shows that they committed a great sin, in crying out that that which they knew to be of God, was of the devil, when He subjoins, Verily I say unto you, All sins are forgiven, &c. All sins and blasphemies are not indeed remitted to all men, but to those who have gone through a repentance in this life sufficient for their sins; thus neither is Novatusm right, who denied that any pardon should be granted to penitents, who had lapsed in time of martyrdom; nor Origen, who asserts that after the general judgment, after the revolution of ages, all sinners will receive pardon for their sins, which error the following words of the Lord condemn, when He adds, But he that shall blaspheme against the Holy Ghost, &c. (ubi sup.) Neither however are those, who do not believe the Holy Spirit to be God, guilty of an unpardonable blasphemy, because they were persuaded to do this by human ignorance, not by devilish malice.

We must however understand, that they will not obtain pardon unless they repent. But since it was at the flesh of Christ that they were offended, even though they did not repent, some excuse was allowed them, and they obtained some remission.