Mark 3:28-30: “Truly I say to you, all sins shall be forgiven the sons of men, and whatever blasphemies they utter; but whoever blasphemes against the Holy Spirit never has forgiveness, but is guilty of an eternal sin”-- because they were saying, “He has an unclean spirit.”
Luke 12:10: “And everyone who speaks a word against the Son of Man, it will be forgiven him; but he who blasphemes against the Holy Spirit, it will not be forgiven him.”
(1) Can the [Calvinistically] elect commit the unpardonable sin? (yes/no?)
(2) Can the [alleged] non-elect commit the unpardonable sin? (If yes, then explain how the “unpardonable sin” is distinguished from every other sin that the non-elect commits, since all of the non-elect’s sins are unpardonable, since the [alleged] non-elect have no Savior who died on the cross for them, as per Limited Atonement. So what sin of theirs is pardonable, in contrast to that which is un-pardonable?
One member of The Society of Evangelical Arminians explains: “The warning cannot apply to the elect, as they could never commit this sin and end up being unforgiven. So this warning is useless and irrelevant for them. But then the warning must be for the reprobates. But this makes no sense as they have been chosen for damnation and nothing will change that. The warning cannot lead them to Christ, as it is impossible that they come to Christ. So it is useless and irrelevant to them. So the warning, as strong as it is, makes no sense and is completely irrelevant if everything is Calvinistically predestined. This warning only makes sense if people have genuine free will and can choose to commit this sin or not. So the warning, at the same time, shows Calvinism to be false and shows that free will as ordinarily understood (i.e. that we sometimes have and make choices and these choices are up to us) exists. Jesus is saying to people who might make that wrong choice, not to make that choice. But that makes no sense if Calvinism were true and if free will did not exist.” (SEA) Adrian Rogers explains: “There is a time, I know not when. There is a place, I know not where, which marks the destiny of men, to Heaven or Despair. There’s a line by us not seen, that crosses every path. Tis the hidden boundary, between God’s mercy and God’s wrath. And if you step over that deadline, you will have committed an unpardonable sin. Now what is the unpardonable sin? It is not some moral sin. It is not rape. It is not murder. It is not child molestation. As bad as those are, horrible and wicked as those are, anyone who has done that, can still be saved.” (The Unpardonable Sin)
Rogers adds: “What is the ‘blasphemy of the Holy Spirit’? That’s the ‘unpardonable sin’, and we’re going to see in a moment, that it is attributing to the devil, the work of the Spirit of Almighty God. Now this sin, the blasphemy against the Holy Ghost, the sin that can never, never, never, never, never be forgiven, is a sin that one may commit, and will commit, knowingly, willfully, with his eyes wide open, and then forever shut.” (The Unpardonable Sin, emphasis mine)
Bruce McLaughlin comments: “Matthew 12:31, 32 and Mark 3:29, 30 present the ‘unpardonable sin’ of blaspheming the Holy Spirit. Attributing, to Satan, Christ’s authenticating miracles, done in the power of the Holy Spirit, is one path to blasphemy. What about attributing Satan’s evil to the Holy Spirit? Is that less heinous than attributing the Holy Spirit’s goodness to Satan? Might that be another path to blasphemy? ... Calvinists may have found another path to blasphemy by attributing all Satan’s evil to God.” (Can God’s Will be Thwarted?, emphasis mine)
The unpardonable sin is generally thought of as attributing the “work of the Holy Spirit” to demons, and it is reasonable to conclude that it would include the reverse as well, that is, by attributing the “work of the demons” to the Holy Spirit, and that’s where things get a bit dicey for Determinism. In other words, according to Calvinistic Determinism, the “work of the demons” must necessarily fall within God’s sovereign meticulous decree. In other words, Calvinism is theologically committed to agreeing that the Occult comes from God, and Witchcraft comes from God and child demon-possession comes from God, without which, God couldn’t infallibly know that it would happen, or be sovereign over it. So that is the overall concern there, though in my mind, it still remains inconclusive. In my view, the unpardonable sin is rejecting Christ, through the prompting of the Holy Spirit, and anyone who rejects Christ will eventually end up in Hell, as being the only sin outside of the scope of sins covered in the Atonement provided for the number of all men (being an unlimited Atonement in the sense that it’s for all men, rather than something that covers all particular sins).