Here’s some information about the “unpardonable sin” you might find interesting:Matthew 12:22-45Using the Gospel of Matthew as a base, we see that Jesus began His ministry in chapter 4. From chapter 4 until chapter 12, Christ is seen going around Israel proclaiming the Kingdom and preaching the gospel of the Kingdom. He performs many miracles, and the purpose of each of these miracles between chapters 4 and 12 is to authenticate His person and His message. They are signs to force the nation of Israel to come to a decision regarding: (1) His person – that He is the Messiah; and, (2) His message – the gospel of the Kingdom. But, then, in Matthew 12, the whole purpose of His miracles and His ministry will undergo a radical change. The rejection of His Messiahship is about to occur. In Matthew 12:22-29, we read:22 Then was brought unto him one possessed with a demon, blind and dumb: and he healed him, insomuch that the dumb man spake and saw. 23 And all the multitudes were amazed, and said, Can this be the son of David? 24 But when the Pharisees heard it, they said, This man doth not cast out demons, but by Beelzebub the prince of the demons. 25 And knowing their thoughts he said unto them, Every kingdom divided against itself is brought to desolation; and every city or house divided against itself shall not stand: 26 and if Satan casteth out Satan, he is divided against himself; how then shall his kingdom stand? 27 And if I by Beelzebub cast out demons, by whom do your sons cast them out? therefore shall they be your judges. 28 But if I by the Spirit of God cast out demons, then is the kingdom of God come upon you. 29 Or how can one enter into the house of the strong man, and spoil his goods, except he first bind the strong man? and then he will spoil his house.As we stated earlier, the purpose of the miracles of Jesus was to authenticate to the nation His person and His message. Within Judaism were also exorcists who exorcised demons (v. 27). But in Jewish exorcism, one had to communicate with a demon in order to find out its name and then use that name to cast out the demon. But in the case here, where the demon caused the person to become dumb, Jewish exorcism was of no avail. Communication with the demon was rendered impossible. But Jewish theology taught that when the Messiah came, He would be able to cast out even that kind of demon.Indeed, in verse 22 of the above passage, Christ was able to exorcise that kind of demon.In verse 23, this caused the people to begin asking the question, “Can Jesus really be the Messiah?” This was one of the key purposes of this miracle, that they might see that He was indeed the foretold Son of David. The people, however, were not willing to judge His person by themselves but were looking to their religious leaders, the Pharisees, to come up with some kind of public statement or judgment concerning Jesus. They were looking to the Pharisees to conclude either that He was the Messiah or that He was not. But if He was not the Messiah, the Pharisees needed to offer some kind of alternative explanation as to how He was able to perform these many miracles.In verse 24, we find that the Pharisees chose the latter course. They refused to accept Jesus as the Messiah, because He did not fit the Pharisaic “mold” or idea of what Messiah was supposed to say and do. Their alternative as to how He was performing His miracles was to say that He Himself was demon-possessed by Beelzebub. This, then, becomes the basis of the rejection of the Messiahship of Jesus. This is the “leaven of the Pharisees,” the false teaching about which Jesus would warn His disciples. They were to beware of the leaven of the Pharisees, i.e., the claim that Jesus was not the Messiah but rather that He was demon-possessed. It was on these grounds that the Pharisees rejected the Messiahship of Christ.In verses 25-29, Messiah responded to this accusation by telling them that their statement could not be true, as it would mean that Satan’s kingdom was divided against itself.In verses 30-37, Jesus pronounced judgment on the generation of that day. Verses 30-32 read:30 He that is not with me is against me, and he that gathereth not with me scattereth. 31 Therefore I say unto you, Every sin and blasphemy shall be forgiven unto men; but the blasphemy against the Spirit shall not be forgiven. 32 And whosoever shall speak a word against the Son of man, it shall be forgiven him; but whosoever shall speak against the Holy Spirit, it shall not be forgiven him, neither in this world, nor in that which is to come.This is a warning from Jesus that they are treading on very dangerous ground. He says that blaspheming against Him, the “Son of man”, can be forgiven, but if they blaspheme against the Holy Spirit, they will have crossed the line. LOTS of people find this confusing, but I think we can find a very reasonable and Biblically sound explanation for this statement.We must be very clear as to what the blasphemy of the Holy Spirit is. It is the unpardonable sin which was committed by “that generation” of Israel in Jesus’ day. It did NOT involve the denial of Jesus’ Messiahship while He was physically present on this earth on the grounds that He was demon-possessed. This was “speaking a word against the Son of man”, to use Jesus’ own words. Jesus differentiates between that and “blasphemy against the Spirit”. So where does “blasphemy against the Spirit” fit in?To find the answer, we must go to the book of Acts, specifically Chapters 2 & 7. In chapter 2, we see the famous story of the Holy Spirit coming on the apostles and the resultant speaking in tongues, etc. This was followed in chapters 3-6 by story after story of the Holy Spirit’s testimony to Israel concerning Jesus’ Messiahship. Time and time again miracles occurred as well as radically changed behavior, both in the general group of believers as well as in the apostles themselves, all of which served as testimony to Israel regarding the true Messiahship of Jesus. This was all testimony that came from the Holy Spirit, via the apostles. Then we get to the moment where the line was crossed at Acts 6:8-7:60, the false accusation, trial, and stoning to death of Stephen. Look at this excerpt from Stephen’s testimony before the Sanhedrin:Acts 7:51-53 - “”You stiff-necked people! Your hearts and ears are still uncircumcised. You are just like your ancestors: You always resist the Holy Spirit! Was there ever a prophet your ancestors did not persecute? They even killed those who predicted the coming of the Righteous One. And now you have betrayed and murdered him— you who have received the law that was given through angels but have not obeyed it.” ”By their subsequent stoning Stephen to death, they have now completed the “blasphemy against the Spirit”. And three things now happen at this point that are critical to this discussion.Acts 8:1-2 - “Saul approved of their killing him (Stephen). On that day a great persecution broke out against the church in Jerusalem, and all except the apostles were scattered throughout Judea and Samaria. 2 Godly men buried Stephen and mourned deeply for him. 3 But Saul began to destroy the church. Going from house to house, he dragged off both men and women and put them in prison.”1. Saul, later to be Paul of course, enters the picture.2. The Church is scattered, being forcibly moved on to Phase 2 of the Great Commission.3. The identity of the group of believers is here confirmed by the Scriptures as “The Church”.Up until this point, the possibility may have still been open that Israel could claim their earthly kingdom under Christ’s leadership. But now, they have committed the “unpardonable sin” and rejected the testimony of the Holy Spirit as presented in Acts 2-7, concluding with the testimony of Stephen. When they stoned Stephen, they signed their own death warrants as the viable corporate nation of Israel, not as individuals. (If they had signed their death warrants as individuals, then Saul could not have been saved and become Paul since he played a key role in the murder of Stephen.)At this point we should look at what Jesus had to say about this “blasphemy against the Spirit”. This sin would be considered unpardonable, requiring judgment. It is a sin that cannot be committed by individuals today. It was a national sin committed by the generation of Jesus’ day; and for that generation, that sin was unpardonable. This did not mean that individual members of that generation could not be saved, for many were saved. It did, however, mean that nothing they could do would avert the coming destruction of Jerusalem once that unpardonable sin was committed. It was a done deal, signed, sealed, and delivered, do not pass go, do not collect $200.00.Rejection of His Messiahship, then, was the unpardonable sin. Judgment was set, and there was no way of alleviating that judgment. It was a judgment that was to be fulfilled in the year A.D. 70. In Matthew 12:33-37, Messiah emphasized that there was no middle ground in the decision that had been declared regarding His Messiahship. Finally, Jesus tells that generation of Israel that they would be condemned by their own words, saying:37 For by thy words thou shalt be justified, and by thy words thou shalt be condemned.We then see later on in Matthew 16 that Jesus is already planning on switching to a new entity: ”On this rock I will build my church...” Not “might” build or even “probably” build, but “will” build. It’s already a done deal. This is because God, in His knowledge of all things past, present, and future, knew that, even though He gave Israel another chance in Acts 2-6, they would reject it and He would wind up turning to the Gentiles.Consider this: In Matthew 23 we find Christ’s denunciation of the Scribes and Pharisees, the Jewish leadership of that day, for leading the nation in the rejection of His Messiahship:O Jerusalem, Jerusalem, that killeth the prophets, and stoneth them that are sent unto her! (Notice the similarity with Stephen’s testimony in Acts 7:52.) How often would I have gathered thy children together, even as a hen gathereth her chickens under her wings, and ye would not! Behold, your house (the Temple) is left unto you desolate. For I say unto you, Ye shall not see me henceforth, till ye shall say, Blessed is he that cometh in the name of the Lord.Speaking to the Jewish leadership, Christ reiterates His original desire to gather them if they would only accept Him. But due to their rejection of His Messiahship, they will be scattered instead of gathered. Their house, the Jewish Temple, will be destroyed with nothing remaining. He then declares that they will not see Him again until they say, “Blessed is he that cometh in the name of the Lord”. This is a messianic greeting, and it will signify their acceptance of the Messiahship of Jesus, which will happen at the time of the 2nd Coming.Messiah will not return until the Jews and the Jewish leaders ask Him to come back. For just as the Jewish leaders led the nation to the rejection of His Messiahship, they must someday lead the nation to the acceptance of that very same fact.We see this in Hosea 6:1–3Come, let us return to the LORD. He has torn us to pieces but he will heal us; he has injured us but he will bind up our wounds. After two days he will revive us; on the third day he will restore us, that we may live in his presence. Let us acknowledge the LORD; let us press on to acknowledge him. As surely as the sun rises, he will appear; he will come to us like the winter rains, like the spring rains that water the earth.