Hello, and blessings to all.
I would like, if I may, to try to help clear up some of the confusion surrounding the "Unpardonable Sin. I have read many opinions about what exactly this sin might be and I believe it is important enough to attempt to clarify it because many Christians seem to be fearful of having committed this sin. Perhaps, I can set your mind at ease if you are one of these who has ever been concerned about this....
Now, if you will take the first and the last verses of this passage and place the latter immediately after the former you will know what the "Unpardonable Sin" is.
"And the scribes which came down from Jerusalem said, He hath Beelzebub, and by the prince of the devils casteth he out devils."
"But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation: Because they said, He hath an unclean spirit."
The sin which "...hath never forgiveness..." is attributing to Satan or demons that which has clearly been accomplished by the Holy Spirit of God....
I would add one more thing to the "Unpardonable sin" definition.
To commit this sin, you have to be in the actual presence of the living Jesus Christ, watching Him do all of the signs, wonders and miracles He is doing under direct orders from God the Father and through the power of the Holy Spirit, and THEN attribute those things to Satan or demons.
You never see this sin mentioned anywhere else in scripture except when this situation exists. So, unless the resurrected Christ is in your presence doing these signs and wonders, it's impossible for anyone to commit this sin once Christ ascended into heaven.
So what is unforgivable now? Dying without Christ as your Savior/Lord. It is appointed for a man to live once... then comes judgment.