9 Bible Verses about The Unpardonable Sin

So I tell you, every sin and blasphemy will be forgiven, but blasphemy against the Spirit will not be forgiven. Whoever speaks a word against the Son of Man will be forgiven, but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the one to come."

Yet they rebelled and grieved his Holy Spirit; so he changed and became their enemy, and he himself fought against them.

But whoever blasphemes against the Holy Spirit can never be forgiven, but is guilty of eternal sin."

Peter asked, "Ananias, why has Satan filled your heart so that you should lie to the Holy Spirit and keep back some of the money you got for the land?

"You stubborn people with uncircumcised hearts and ears! You are always opposing the Holy Spirit, just as your ancestors used to do.

Do not grieve the Holy Spirit, by whom you were marked with a seal for the day of redemption.

Do not put out the Spirit's fire.

How much more severe a punishment do you think that person deserves who tramples on God's Son, treats as common the blood of the covenant by which it was sanctified, and insults the Spirit of grace?

If anyone sees his brother committing a sin that does not lead to death, he should pray that God would give him life. This applies to those who commit sins that do not lead to death. There is a sin that leads to death. I am not telling you to pray about that.