Luke 12:10
And whoever shall speak a word against the Son of man, it shall be forgiven him; but he that speaks impiously against the Holy Spirit, shall not be forgiven.
Matthew 12:31-32
Therefore I say to you, That every sin and impious speech shad be forgiven men: but the impious speech against the Spirit shall not be forgiven men.
1 John 5:16
If any one see his brother sinning a sin not to death, he shall ask, and he will give him life for those who sin not to death. There is a sin to death: I do not say concerning this, that he should ask.
1 Timothy 1:13
me, I say, who before was a reviler and a persecutor and an overbearing man. But I obtained mercy, because I did it ignorantly in unbelief:
Mark 3:28-30
Verily I say to you, All sins shall be forgiven the sons of men, and whatever impious speeches they may utter;
Luke 23:34
And Jesus said: Father, forgive them, for they know not what they do. And dividing his clothing into parts, they cast lots.
Hebrews 6:4-8
For it is impossible to renew again to repentance those who have once been enlightened, and have tasted of the heavenly gift, and have been made partakers of the Holy Spirit,
Hebrews 10:26-31
For if we sin willfully, after we have received the knowledge of the truth, there remains no longer a sacrifice for sins;