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Ask FGBC #39: What Does The Bible Mean By The Unforgiveable Sin?

Jim Butler · 2025-03-07 · 857 words · 5 min

Ask FGBC Anything

Summary

Qa

The unforgivable sin and the apostasy warnings of Hebrews 6 and 10 both describe a wholesale, hardened rejection of the redemptive work of God in Christ, a category no anxious believer need fear they have entered.

What is the unforgivable sin, and should a troubled conscience fear having committed it? Drawing on Matthew 12:31-32 and the apostasy warnings of Hebrews 6 and 10, this Q&A response argues that blasphemy against the Holy Spirit is not a momentary verbal offense but a wholesale, persistent rejection of the redemptive work of God in Christ — impugning the Spirit's testimony to Christ's works and glory. The defining mark of a genuine apostate is not anguish or doubt but a hardened, unrepentant contempt, like those who cried 'crucify him.' Anyone asking whether they have committed this sin gives evidence by that very asking that they have not.

Key quotes

It is not so much a sin against the person of the Holy Spirit as a sin against his official work in revealing, both objectively and subjectively, the grace and glory of God in Christ.
We don't know who a genuine bona fide apostate is. We don't know who a genuine bona fide reprobate is. There's no markers. There's no indicators. We preach the gospel to every creature.
While there's breath in the lungs, there's hope for them.

Applications

  1. Do not conclude that habitual doubt or weak faith constitutes blasphemy against the Holy Spirit — that sin belongs to those who wholesale reject Christ without remorse, not to those who anxiously seek him.
  2. Preach the gospel to every creature, trusting that God knows his elect, even when someone appears to be a hardened apostate.
  3. Exercise wisdom in relationships with those who violently reject the gospel, but do not cut off hope for their conversion while they live.
  4. If you are troubled by the question of whether you have committed the unforgivable sin, take your very anxiety as evidence that you have not.

Questions this sermon answers

What is the unforgivable sin or blasphemy against the Holy Spirit?

It is not primarily a verbal offense against the person of the Spirit but a sin against his official work — specifically, attributing the miraculous works of Christ to the devil and wholly rejecting the grace and glory of God in Christ.

Is the unforgivable sin the same as apostasy?

Yes, they are closely connected: both describe a wholesale, hardened rejection of what God has done in Christ, as spelled out in the apostasy warnings of Hebrews 6 and 10.

Can a Christian accidentally commit the unforgivable sin?

No — the person who has committed it does not feel bad or seek recovery; the very fact that someone is anxious about whether they have committed it is itself evidence that they have not.

How should Christians treat someone who seems to be an apostate?

With wisdom and care, but without despair — since we cannot know with certainty who is a genuine apostate, we preach the gospel to every creature, trusting God to save his elect.

Is there still hope for someone living in open rejection of Christ?

While there is breath in the lungs there is hope, since we cannot decisively identify who is a bona fide apostate; someone giving all appearances of apostasy may yet be convicted and converted.

Questions and Answers

Okay, what does the Bible mean by the unforgivable sin? Also called the blasphemy against the Holy Spirit? Yeah,

Blasphemy and Apostasy Defined

I think that there's a connection between that and apostasy. And apostasy, I think, is spelled out in Hebrews 6 and Hebrews 10. So, in the Gospel record, I think specifically the crime, the sin that is being dealt with is that Jesus did mighty deeds and miracles, and his opponents, the unbelieving Jews, were ascribing that to the devil himself. And so, it's in that context, in verse 31 of Matthew 12, therefore I say to you, every sin and blasphemy will be forgiven men, But the blasphemy against the Spirit will not be forgiven men.

Anyone who speaks a word against the Son of Man, it will be forgiven him. But whoever speaks against the Holy Spirit, it will not be forgiven him, either in this age or in the age to come." So by their conduct, by their rejection, by their resistance of our Lord Jesus, it was impugning the Holy Spirit. I don't think we're supposed to see, as we talked in the last section, you know, divisions amongst the Godhead. I think Berkhoff says it well.

Sin Against the Spirit's Official Work

It is not so much a sin against the person of the Holy Spirit as a sin against his official work. in revealing, both objectively and subjectively, the grace and glory of God in Christ. So it is to resist and reject that which God has done here, specifically in the miracles and the signs and the wonders that are attributed to our Lord Jesus. And then

Apostasy in Hebrews 6 and 10

in Hebrews 6 and 10, the commonality is to resist and reject what God has done in sending the Son of His love, who is superior to the Old Covenant, who is superior to the Aaronic priesthood, who is superior to all these things that you guys want to keep going back to. So an apostasy is a defection from the truth. It is a rejection of the truth. It is, in the language of Hebrews 10, to trample again underfoot the Son of God.

So, to witness the works, the power, the glory, the gospel of God, and then just to wholesale reject it. And

Who the Apostate Is Not

I don't think it's the struggling saint. I don't think it's the little faith guy that's, you know, am I a believer or not? These people don't want recovery. It's not like they've committed the unpardonable sin or they've committed apostasy and they feel bad.

That's not it at all. I mean, these guys in Matthew 12, not only did they not feel bad, but they clamored or cried out, away with him, away with him, crucified him, manipulated Pontius Pilate such that he would be crucified. in the same way in those contexts in Hebrews 6 and 10, they needed to stay in terms of their profession of faith in Christ and not go back to Temple, not go back to Moses, not go back to Aaron. Not that Temple, Moses, and Aaron were bad, but Temple, Moses, and Aaron pointed to Jesus. The substances here don't go back to the shadows.

To go back to the shadows was a defection from or an apostasy from the glory of the Lord Jesus Christ. But if they were like that in the next year, they might actually hear the gospel or they could come turn around again, right? That's right.

Gospel to Every Creature

We don't know who a genuine bona fide apostate is. We don't know who a genuine bona fide reprobate is. There's no markers. There's no indicators.

We preach the gospel to every creature. It's God's will, God's work to save his elect. And so, yeah, we don't, if somebody, Now, I mean, if somebody is a violent apostate or a violent reprobate, that doesn't mean we have to keep, you know, going into their yard while they try to shoot us. You know, you've got to exercise wisdom.

Paul says in Romans 12, as far as it depends on you, be at peace with all men. Well, I don't think that obligates me to get shot with buckshot by a reprobate neighbor. So yeah, we don't know decisively and we don't know beyond a shadow of a doubt who's a reprobate and who's an apostate. So I always try to be careful in using that language in preaching or teaching because we don't know.

Somebody may give expression or give evidences of being an apostate or a reprobate and get convicted and converted. And we praise God. Yeah. While there's breath in the lungs, there's hope for them.

That's right. Amen. That's how we operate. Yeah.

That's right. But there is a category of apostate and of reprobate, just because we don't know who they are. God does. So, you know, and I think that's what those Matthew 12 or the unpardonable sin and the apostasy passages in Hebrews 6 and 10, I think that's what's going on.

Yeah. And

Doubt as Evidence of Grace

if somebody's doubting and wondering, have I committed that sin? Does the fact that they're asking that question show that they haven't? Yeah. Yeah.

Scripture References

Study notes

Theological terms

  • Apostasy×8
  • Blasphemy Against the Holy Spirit×3
  • Elect
  • Old Covenant
  • Reprobate×5
  • Unpardonable Sin×2

People cited

  • Louis Berkhof