
Hilary of Poitiers
Catena Aurea · Matthäusevangelium 12
Wherefore I say unto you, All manner of sin and blasphemy shall be forgiven unto men: but the blasphemy against the Holy Ghost shall not be forgiven unto men. And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come.
And what is so beyond all pardon as to deny that in Christ which is of God, and to take away the substance of the Father’s Spirit which is in Him, seeing that He performs every work in the Spirit of God, and in Him God is reconciling the world unto Himself.