And whosoever shall speak a word against the Son of man, it shall be forgiven him: but unto him that blasphemes against the Holy Spirit it shall not be forgiven.
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Tertullian of Carthage
AD 220
From denial of Himself, He adds an admonition to fear blasphemy: "Whosoever shall speak against the Son of man, it shall be forgiven him; but whosoever shall speak against the Holy Spirit, it shall not be forgiven him."