8 Bible Verses about Unforgivable Sin

Therefore I say to you, All manner of sin and evilspeaking will be forgiven to men; but blasphemy against the Spirit will not be forgiven. And whoever speaketh a word against the Son of man, it will be forgiven him; but whoever speaketh against the Holy Spirit, it will not be forgiven him, either in this world, or in the world to come.

Truly do I say to you, All sins will be forgiven the sons of men, and the blasphemies wherewith they shall blaspheme; but he that shall blaspheme against the Holy Spirit hath no forgiveness forever, but is exposed to everlasting sin.

And every one that shall speak a word against the Son of man, it will be forgiven him; but to him that hath blasphemed against the Holy Spirit, it will not be forgiven.

For if we sin willingly after we have received the knowledge of the truth, there no longer remaineth a sacrifice for sins; but a certain fearful looking for judgment, and an indignation by fire, which will devour the adversaries. He that hath set at nought the law of Moses dieth without mercy under two or three witnesses;read more.
of how much heavier punishment, think ye, will he be thought worthy, who hath trodden under foot the Son of God, and hath counted the blood of the covenant, wherewith he was sanctified, an unholy thing, and hath done despite to the Spirit of grace?

Because they said, He hath an unclean spirit.

But the Pharisees, hearing it, said, This man doth not cast out the demons, except through Beelzebul, the prince of the demons.

And the scribes who came down from Jerusalem said, He hath Beelzebul; and, He casteth out the demons through the prince of the demons.

But some of them said, He casteth out the demons through Beelzebul, the prince of the demons;