Luke 12:10
and whoever shall cast a reflection upon the son of man, it shall be forgiven him; but as for him, that shall blaspheme the holy spirit, it shall not be forgiven.
Matthew 12:31-32
wherefore I declare to you, all manner of sin and blasphemy shall be forgiven men; but blaspheming the holy Spirit
1 John 5:16
If any man see his brother commit a sin, which is not a mortal sin, let him pray to God, who will grant him life, for such as do not commit a mortal sin. there is a sin unto death: in which case I do not enjoin any prayer to be made.
1 Timothy 1:13
who was before a blasphemer, and a violent persecutor; but I obtained mercy, because I acted thro' ignorance in incrudelity.
Mark 3:28-30
I declare unto you, all the sins which men may commit, and whatsoever blasphemies they may utter, may be forgiven them.
Luke 23:34
and Jesus said, "father, forgive them; for they know not what they do." then they divided his raiment among them by throwing lots,
Hebrews 6:4-8
For it is impossible for those who were once enlightned, and have received the heavenly gifts, communicated by the holy spirit,
Hebrews 10:26-31
for if we wilfully apostatize, after having received the knowledge of the truth, it is as a sin for which there is no sacrifice appointed.