8 Bible Verses about Unforgivable Sin

For this reason I tell you, people will be forgiven for every sin and blasphemy, but the 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 age to come.

I tell you the truth, people will be forgiven for all sins, even all the blasphemies they utter. But whoever blasphemes against the Holy Spirit will never be forgiven, but is guilty of an eternal sin"

And everyone who speaks a word against the Son of Man will be forgiven, but the person who blasphemes against the Holy Spirit will not be forgiven.

For if we deliberately keep on sinning after receiving the knowledge of the truth, no further sacrifice for sins is left for us, but only a certain fearful expectation of judgment and a fury of fire that will consume God's enemies. Someone who rejected the law of Moses was put to death without mercy on the testimony of two or three witnesses.read more.
How much greater punishment do you think that person deserves who has contempt for the Son of God, and profanes the blood of the covenant that made him holy, and insults the Spirit of grace?

(because they said, "He has an unclean spirit").

But when the Pharisees heard this they said, "He does not cast out demons except by the power of Beelzebul, the ruler of demons!"

The experts in the law who came down from Jerusalem said, "He is possessed by Beelzebul," and, "By the ruler of demons he casts out demons."

But some of them said, "By the power of Beelzebul, the ruler of demons, he casts out demons."