Mark 3:28
Verily I tell you, that all sins shall be forgiven to the sons of men, and blasphemies wherewith they may blaspheme:
Matthew 12:31-32
Wherefore, I tell you, All manner of sin and blasphemy shall be forgiven to men; but the blasphemy against the holy Spirit shall not be forgiven them:
Luke 12:10
And whosoever shall speak a word against the Son of man, it may be forgiven him; but unto him, that blasphemeth the holy Spirit, it shall not be forgiven.
1 John 5:16
If any one see his brother commit a sin which is not unto death, let him pray for him, and God will give him life, that is for them that do not sin unto death. There is a sin unto death: and for that I do not say that he should pray.
Mark 3:28-30
Verily I tell you, that all sins shall be forgiven to the sons of men, and blasphemies wherewith they may blaspheme:
Hebrews 6:4-8
who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the holy Spirit,
Hebrews 10:26-31
For if we sin wilfully after having received the knowledge of the truth, there remaineth no more sacrifice for sins;