Hebrews 10:26
For if we sin wilfully after having received the knowledge of the truth, there remaineth no more sacrifice for sins;
Matthew 12:32
and if any one speak against the Son of man, it may be forgiven him: but if any one speak against the holy Spirit, it shall not be forgiven him, neither in this life, nor in that to come.
Hebrews 10:29
of how much greater punishment, think ye, shall he be counted worthy, who hath trampled under foot the Son of God, and accounted the blood of the covenant, by which he was sanctified, an unholy thing, and abused the Spirit of grace?
2 Peter 2:10
especially those who walk after the flesh in the lust of uncleanness, and despise authority; who, being audacious and self-willed, are not afraid to speak evil of dignities: