What is the "unforgivable sin"?

The most "unforgivable sin" to Christians is apparently not believing their claims without sufficient evidence.

Blasphemy is a victimless crime.

Blasphemy against the Holy Spirit is a crime so victimless, that it cannot be committed, and since that which cannot be committed needs not be forgiven, it is unforgivable.

Evidence of a crime is needed, before a crime can be recognized as having been committed.

"The Universe exists" is not evidence that the Holy Spirit exists.

Written reports of things the Holy Spirit allegedly did, is not evidence that the Holy Spirit exists, any more than written reports of what Tarzan of the Apes allegedly did, are proof of Tarzan.

The unforgivable sin is rejecting that:(1) Jesus is the only way to heaven (2) He died on the cross to save all people from their sins if they accept Him into their life, as well as admitting that you are not good enough to go to heaven because of your own good works (deeds).

Luke 12:10 - And whosoever shall speak a word against the Son of man, it shall be forgiven him: but unto him that

blasphemeth against the Holy Ghost it shall not be forgiven.

1 John 1:9 - If we confess our sins, he is faithful and just to forgive us [our] sins, and to cleanse us from all unrighteousness.

Ephesians 2:8-9 - For by grace are ye saved through faith; and that not of yourselves: [it is] the gift of God:

Romans 4:25- He was handed over to die because of our sins, and he was raised to life to make us right with God.

John 3:16 “For God so loved the world, that he gave his only Son, that whoever believes in him should not perish but have eternal life.

The blastphemy against the holy spirit is not believing in God.

Mat 12:31 "So I tell you, every sin and blasphemy can be forgiven—except blasphemy against the Holy Spirit, which will never be forgiven.

Mat 12:32 Anyone who speaks against the Son of Man can be forgiven, but anyone who speaks against the Holy Spirit will never be forgiven, either in this world or in the world to come.

Mat 12:33 "A tree is identified by its fruit. If a tree is good, its fruit will be good. If a tree is bad, its fruit will be bad.

blas·phe·my

ˈblasfəmē/

noun

the act or offense of speaking sacrilegiously about God or sacred things; profane talk.

"he was detained on charges of blasphemy"

synonyms: profanity, sacrilege, irreligion, irreverence, taking the Lord's name in vain, swearing, curse, cursing, impiety, desecration; archaicexecration

"the nuns would punish me at least three times a week for my blasphemy"

In scripture, "blasphemy against The Holy Spirit" was being critical of what Jesus did, exorcising evil spirits, which he claimed was from the Holy Spirit - he didn't think that criticism of himself as a person was as serious as criticising what he did. He was speaking to religious people. Blasphemy against the Holy Spirit – the unpardonable sin - is from Matthew 12 and Mark 3.

The context is that the Pharisees put into words what everyone's saying, that Jesus casts out devils by the power of Beelzebub the prince of devils (actually a god of another nation).

He turns on them challenging their logic, and ranting that if he does it by Beelzebub, how do Pharisees do it? And he tells them that he is actually disabling Beelzebub in the same way that a burglar ties up a strong man before ransacking his house.

He implies that he drives out devils by the Spirit of God, and he tells them that "He who is not with me is against me...".

He then goes on, "And so I tell you this: no sin, no slander, is beyond forgiveness for men, except slander spoken against the Spirit, and that will not be forgiven. Any man who speaks against the Son of Man will be forgiven; but if anyone speaks against the Holy Spirit, for him there is no forgiveness, either in this age or in the age to come."

He carries on, but he seems to be saying that they can insult him, but not what he does because he does it by the Holy Spirit.

There’s also Luke 12:10, “And everyone who speaks a word against the Son of Man will be forgiven, but anyone who blasphemes against the Holy Spirit will not be forgiven.”

The only unforgivable sin is the refusal to accept forgiveness

It is a willful act of defiance, Jesus was referring to Numbers 15:30. Following the tradition of the Jews Jesus would not have said the name of God (translated LORD) so he substituted Holy Spirit.

Num 15:30

‘But the person who does anything defiantly, whether he is native or an alien, that one is blaspheming the LORD; and that person shall be cut off from among his people.

It is rejection of the action of the Holy Spirit in your life, in other words, rejection of God's grace. It is the quiet voice of the Holy Spirit that we experience as "conscience", which leads us to repent and receive forgiveness. Once we cut ourselves off from that quiet voice, our conscience is dead, we can no longer repent, and therefore can no longer be forgiven.

It obviously is when upon hearing or reading about Jesus one did not make the required sincere covenant with the Father that he would always obey all of Jesus' sayings .

MOST CHRISTIANS ALREADY DID THIS SIN , BUT REFUSE TO ADMIT IT .

There is none, but maybe having relations with the devil might be one. Any sin like lying, murdering or blashpemy can be easily forgiven though