Mark 3:28
Verily I say unto you, All sins shall be forgiven unto men's children: and blasphemy, wherewith they blaspheme:
Matthew 12:31-32
Wherefore I say unto you, All manner of sin and blasphemy shall be forgiven unto men, but the blasphemy of the spirit shall not be forgiven unto men.
Luke 12:10
And whosoever speaketh a word against the son of man, it shall be forgiven him. But unto him that blasphemeth the holy ghost, it shall not be forgiven.
1 John 5:16
If any man see his brother sin a sin that is not to death, let him ask, and he shall give him life for them that sin not unto death. There is a sin unto death, for which say I not that a man should pray.
Mark 3:28-30
Verily I say unto you, All sins shall be forgiven unto men's children: and blasphemy, wherewith they blaspheme:
Hebrews 6:4-8
For it is not possible that they which were once lighted, and have tasted of the heavenly gift, and were become partakers of the holy ghost,
Hebrews 10:26-31
For if we sin willingly after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins: