What is blasphemy of the Holy Spirit?
By CopticBot.ai (Coptic Space Inc.) · Last reviewed 2026-10-10
In the Holy Gospel, our Lord Jesus Christ states:
"Therefore I say to you, every sin and blasphemy will be forgiven men, but the blasphemy against the Spirit will not be forgiven men. Anyone who speaks a word against the Son of Man, it will be forgiven him; but whoever speaks against the Holy Spirit, it will not be forgiven him, either in this age or in the age to come." (Matthew 12:31–32)
1. What Blasphemy Against the Holy Spirit Is
Blasphemy against the Holy Spirit (— Pi-Pneuma Ethowab, where is a Greek loanword and is native Coptic) is the complete, persistent refusal to repent and the obstinate rejection of God’s grace until the very last breath.
It is not an accidental slip of the tongue, a temporary fall into doubt, or a specific verbal insult. It is a state of total, willful hardening of the heart against the Holy Spirit, who is the One who convicts the world of sin, leads man to repentance, and works through the Mysteries (Sacraments) of the Church for the remission of sins.
As St. Augustine explained, all manner of sin and blasphemy against the Son of God is forgiven through the Church by the power of the Holy Spirit, as long as the sin of impenitence is not present. The only sin that cannot be forgiven is final impenitence—not because God’s mercy is limited, but because the sinner obstinately refuses the only medicine that can heal him: repentance.
2. The Equality of the Hypostases
Our Lord’s words do not imply that the Holy Spirit is greater than the Son. The Father, the Son, and the Holy Spirit are One God—equal in essence, glory, and eternity.
When Christ spoke of speaking against the "Son of Man," He was referring to those who stumbled over His human humility during His earthly ministry. Before His Resurrection, Ascension, and the descent of the Holy Spirit at Pentecost, men saw Him in the form of a servant, subject to human hunger, thirst, and fatigue, and struggled to perceive His full divinity. Such ignorance and unbelief could be forgiven once the full truth was revealed.
However, to witness the evident power, holiness, and fruit of the Holy Spirit and maliciously reject it—as the Pharisees did when they attributed Christ’s divine miracles to Beelzebub (the devil)—is a deliberate defiance of truth itself.
3. Historical and Theological Manifestations
Historically, blasphemy against the Holy Spirit has manifested in two primary ways:
- Malicious Rejection of Divine Works (The Pharisees): Attributing the clear and miraculous work of the Holy Spirit to the devil out of jealousy, pride, and spiritual blindness.
- Heresy Against the Spirit (The Pneumatomachians): Heretics such as the Pneumatomachians (Macedonians) who denied the divinity of the Holy Spirit, claiming He was merely a created force or operation rather than God, of the same essence (consubstantial) with the Father and the Son.
Furthermore, pitting the Church against Holy Scripture is another form of this error, for both are inspired and preserved by the same Holy Spirit. To suggest that the Holy Spirit contradicts Himself is blasphemy against the Spirit of Truth.
4. What It Is NOT: Intrusive and Demonic Thoughts
Many believers fear they have committed this sin because they experience blasphemous, wicked, or sudden blasphemous thoughts, even during prayer or during the Divine Liturgy.
The Fathers, including St. John Climacus in The Ladder of Divine Ascent, teach clearly that such vile thoughts are not the work of the soul that desires God, but the whispers of the devil attacking the believer. If a person hates these thoughts, grieves over them, and desires to worship and repent before God, they have not committed blasphemy against the Holy Spirit. The devil tempts souls to despair by convincing them they have committed an unforgivable sin, so that they cease to confess and abandon prayer.
Summary
Blasphemy against the Holy Spirit is unforgivable strictly because it is the stubborn, willful rejection of repentance to the end of one's life. Whoever turns to God with a broken heart, confesses his sins, and seeks the mercy of Jesus Christ through the Church will always be received and forgiven, for the Holy Spirit actively works in that repentance.