Hebrews 10:26
For if we sin wilfully, after we have received the knowledge of the truth, there no longer remains any other sacrifice for sins,
Matthew 12:32
"And if any man say a word against the Son of man, it shall be forgiven him; but whoever speaks against the Holy Spirit, it shall not be forgiven him, either in this age or in that which is to come.
Hebrews 10:29
How much surer, think you, will be the punishment of one who has trodden under foot the Son of God, and has profaned that covenant blood with which he was sanctified, and has done despite to the spirit of grace?
2 Peter 2:10
especially those who spend their lives following the flesh in the lust of defilement, and in despising all authority. Audacious and willful, they feel no awe in railing against dignities;