The unpardonable sin is the deliberate refusal to acknowledge God's power in Christ. It indicates a deliberate and irreversible hardness of heart. Sometimes believers worry that they have accidently committed this unforgivable sin, but only when they have turned their backs on God and reject all faith have any need to worry. Jesus said they can't be forgiven, not because their sin is worse than any other, but because they will never ask for forgiveness. Whoever rejects the prompting of the Holy Spirit removes himself or herself from the only force that can lead him or her to repentance and restoration to God.