During the well documented time of Immanuel who brought the Good News from the Reign of the Heavens FIRST and FOREMOST unto the lost sheep of Israel, the self-righteously puffed up priests, scribes and false prophets of that day tried to explain away the OBVIOUS miracles done by the seemingly unremarkable and UNDESIRABLE "Common Man" that was this carpenter's son who was becoming increasingly popular among these truth hungry peoples. 

At one point they asserted that specific miracles related to the casting out of unclean spirits was somehow effected by this person's intimate congress with these Adversarial beings.  At that point the full revelation of the ONLY "unforgivable" trespass against the GOOD, Omnipresent, Omnipotent, Sentient Creator Deity whom I learned over time to have faith in was FIRMLY established.

What is Unforgiveable?  What is Unforgiveable?  What is Unforgiveable?

It is a well established understanding that by the word of two or three witnesses, the FACT of any matter may be firmly established.  True Witness

And so, it makes perfect sense that no one seeking any form of redemption from their faith in any being, would tender that belief with mistaking the source of that ultimate redemption had ANYTHING to do with Adversarial spirits.

Who is your Adversary? 

IF you read The Book of Enoch AFTER first gaining an understanding of the Quantum Mechanics of our current reality, then you will know.  Till then, Shalom!

EDIT - Oops.....I forgot to include a "Truth" concerning the "Beast's" wrongful attempts to heap COUNTLESS other trespasses upon their own MISREPRESENTATIVE list considered UNFORGIVABLE, suicide being one of them.  And since it is known that the HEAD of a suicide victim was often removed from their body before burial in an attempt to LESSEN their utility in the mythological afterlife of the DAMNED, we can plainly see that these SUPERSTITIONS were not authored NOR sanctioned by the ONLY true representative of the GOOD, Omnipresent, Omnipotent, Sentient Creator Deity which was promised to appear unto the Israelite people by Them, and finally realized in the person of Iesous the Messiah of Nazareth.  Believe it or not.

It is a fact that at one point in my life whenever my beloved THIRD ex-wife was being affected by the genetic influence of Paranoid Schizophrenia that the constant pressure of daily dealing with her untreated delusions which FULLY separated us from ANY form of marital union, I placed a loaded .45 caliber pistol in my mouth with the firm intent to END my personal suffering.  It didn't matter to me at the time that she often reported that she was being "attacked by demons" and would wake up screaming in the middle of the night after having been "touched" by something.  It wasn't until AFTER our separation and divorce whenever I had a very personal spiritual experience that I came to realize that ANY tampering with the temporal reality by ANY adversarial spirits must be ALLOWED for the greater GOOD it will eventually enable.  Read the Book of Job for a better understanding of how this particular dynamic eventually plays out in our current reality.

And so the intense CHASTISEMENT which is being implemented in my current reality is necessary for my own personal growth toward the full realization of my need to extend CHARITY to not only those I love and who show me love in return, but ALSO to those human beings who for all intents and purposes are my ENEMY.  And please do not think that the Messiah came at first to bring PEACE into this reality.  On the contrary, He came to bring the SWORD of Truth which if discovered and spoken will certainly cause INTENSE and UNPLEASANT Cognitive Dissonance in it's hearers and MAY certainly make ENEMIES of one's current friends, significant others, social contacts and family.  Believe it or NOT.  Till then.  Shalom!