Sin Against the Holy Ghost (Spirit)

The sin against the Holy Spirit is described by Jesus as the one sin that 'will not be forgiven, either in this age or in the age to come' (Matt. 12:31-32; Mark 3:29-30; Luke 12:10). The immediate context is the Pharisees' accusation that Jesus cast out demons by the power of Beelzebul — an attribution of his Holy Spirit-empowered works to Satan (Matt. 12:24-28; Mark 3:22-30). Jesus's response identifies this sin as characteristically unforgivable — not because it exceeds the power of divine forgiveness but because of its nature: it involves a deliberate, eyes-open rejection and attribution to evil of what the person clearly recognizes as the work of God's Spirit.

ISBE and patristic interpreters generally agree that this is not a specific act but a settled disposition — the final, willful rejection of the Spirit's testimony to Christ by one who clearly understands what the Spirit is witnessing. The Johannine parallel is the sin 'unto death' (1 John 5:16-17) — a sin reflecting a state of permanent hardness rather than a momentarily grievous but repentable transgression. Hebrews 6:4-6 and 10:26-29 describe related phenomena of apostate rejection of Christ after full illumination, using language of deliberate, informed choice: 'if we deliberately keep on sinning after we have received the knowledge of the truth.' The pastoral implication widely noted from Augustine onward is that genuine distress about whether one has committed this sin is itself evidence of not having committed it — since the sin involves a suppression of all such Spirit-prompted concern.