Luke 12:10
and whoever shall say a word against the Son of man it shall be forgiven him; but to him that speaks injuriously against the Holy Spirit it shall not be forgiven.
Matthew 12:31-32
For this reason I say unto you, Every sin and injurious speaking shall be forgiven to men, but speaking injuriously of the Spirit shall not be forgiven to men.
1 John 5:16
If any one see his brother sinning a sin not unto death, he shall ask, and he shall give him life, for those that do not sin unto death. There is a sin to death: I do not say of that that he should make a request.
1 Timothy 1:13
who before was a blasphemer and persecutor, and an insolent overbearing man: but mercy was shewn me because I did it ignorantly, in unbelief.
Mark 3:28-30
Verily I say unto you, that all sins shall be forgiven to the sons of men, and all the injurious speeches with which they may speak injuriously;
Luke 23:34
And Jesus said, Father, forgive them, for they know not what they do. And, parting out his garments, they cast lots.
Hebrews 6:4-8
For it is impossible to renew again to repentance those once enlightened, and who have tasted of the heavenly gift, and have been made partakers of the Holy Spirit,
Hebrews 10:26-31
For where we sin wilfully after receiving the knowledge of the truth, there no longer remains any sacrifice for sins,