“If We Sin Willfully…” — What Does Hebrews 10:26 REALLY Mean?

Hebrews 10, Unbelief, and the Danger of Rejecting the Gospel

There is a passage in Hebrews that has frightened Christians for centuries:

“For if we sin willfully after we have received the knowledge of the truth, there no longer remains a sacrifice for sins.”Hebrews 10:26

What does that mean?

Does it mean that after becoming a Christian, committing a serious sin means there is no more forgiveness?

Does it mean that one deliberate act of disobedience places us beyond the reach of God?

Or is Hebrews warning us about something much deeper?

To answer that question, we need to let Hebrews explain Hebrews.

And when we do, something remarkable emerges.

The warning is not primarily about accidentally falling into transgression.

It is about turning away from Christ after knowing the Gospel.

It is about unbelief.

And for the Jewish Christians receiving this letter, that danger was very real.

START WITH THE CONTEXT

Hebrews was written to people who already knew something about Christ.

They had heard the Gospel.

They had confessed Christ.

They understood His sacrifice.

They knew the sanctuary.

They knew the priesthood.

They knew the sacrifices.

They understood the covenant promises.

And now they were under pressure.

The temptation was not simply to abandon religion.

It was to go backward.

Back to what was familiar.

Back to the old covenant system.

Back to the earthly priesthood.

Back to the sacrificial system.

Back to the shadows that had pointed forward to Christ.

And Hebrews says:

Do not go back.

Why?

Because Christ is better.

His priesthood is better.

His covenant is better.

His sacrifice is better.

His sanctuary is better.

And the reality has now arrived.

HEBREWS 3: THE WARNING BEGINS

The warning in Hebrews 10 did not suddenly appear in chapter 10.

The author has been preparing us for it.

Hebrews 3 takes us back to Israel in the wilderness.

They had experienced God's deliverance.

They had seen His works.

They had heard His voice.

They had been given the Gospel.

Yet they failed to enter because they did not believe.

The author writes:

“Beware, brethren, lest there be in any of you an evil heart of unbelief in departing from the living God.” Hebrews 3:12

Notice the connection.

Unbelief leads to departing.

The problem is not merely that they committed individual acts of disobedience.

Their fundamental problem was that they stopped trusting God.

And then Hebrews gives us the explanation:

“So we see that they could not enter in because of unbelief.” Hebrews 3:19

That is the interpretive framework we need when we arrive at Hebrews 10.

HEBREWS 4: THE GOSPEL WAS ALREADY PREACHED TO THEM

Hebrews makes another remarkable statement:

“For indeed the gospel was preached to us as well as to them.” Hebrews 4:2

Who were “them”?

The wilderness generation.

They had the Gospel.

The Sanctuary was God's visual Gospel.

They had God's promise.

They had experienced God's deliverance.

But hearing the Gospel was not enough.

They had to believe.

The author continues:

“For we who have believed do enter that rest.” Hebrews 4:3

There is the contrast again.

They heard.

But they did not believe.

Therefore, they did not enter.

And Hebrews warns its Christian readers not to repeat the same mistake.

THE REAL DANGER: DRAWING BACK

Hebrews 3:14 says:

“For we have become partakers of Christ if we hold the beginning of our confidence steadfast to the end.” Hebrews 3:14

The Christian life is not merely about how we began.

It is about continuing to trust Christ.

That is why Hebrews repeatedly says:

Hold fast.

Don't drift.

Don't harden your heart.

Don't depart.

Don't draw back.

The issue is not whether Christ is sufficient.

The issue is whether we will continue believing that He is.

HEBREWS 10:19 — WE HAVE CONFIDENCE

Now we arrive at Hebrews 10.

And notice where the author begins.

Not with fear.

With confidence.

“Therefore, brethren, having boldness to enter the Holiest by the blood of Jesus...” Hebrews 10:19

Why do we have confidence?

Because of Jesus.

Not because of our performance.

Not because we have become worthy.

Not because we have successfully conquered every temptation.

Because of the blood of Jesus.

The author continues:

“By a new and living way which He consecrated for us, through the veil, that is, His flesh...” Hebrews 10:20

Christ has opened the way.

The old system pointed toward this reality.

The shadow has met the substance.

HEBREWS 10:23 — HOLD FAST

Then comes the appeal:

“Let us hold fast the confession of our hope without wavering, for He who promised is faithful.” Hebrews 10:23

There it is again.

Hold fast.

Why?

Because He who promised is faithful.

The foundation of their perseverance is not their own strength.

It is God's faithfulness.

And then the author says:

“And let us consider one another in order to stir up love and good works...” Hebrews 10:24

Christian faith is not isolated.

They are to encourage one another.

And then comes a warning that makes the next verses easier to understand.

HEBREWS 10:25 — DO NOT FORSAKE THE ASSEMBLY

“Not forsaking the assembling of ourselves together, as is the manner of some, but exhorting one another...” Hebrews 10:25

Why does this matter?

Because they were under pressure.

They needed one another.

They needed encouragement to hold fast.

And then the author gives the reason:

“And so much the more as you see the Day approaching.” Hebrews 10:25

The pressure was increasing.

The Day was approaching.

And some were beginning to withdraw.

Now we are ready for the difficult verse.

HEBREWS 10:26 — “IF WE SIN WILLFULLY”

“For if we sin willfully after we have received the knowledge of the truth, there no longer remains a sacrifice for sins.”Hebrews 10:26

At first glance, this sounds like any deliberate sin after conversion puts someone beyond forgiveness.

But is that what Hebrews means?

Consider the context.

What has the author been talking about?

Christ.

His sacrifice.

His priesthood.

The new covenant.

Holding fast.

Not drawing back.

Believing.

Not departing.

And what does the author say immediately afterward?

“But a certain fearful expectation of judgment, and fiery indignation which will devour the adversaries.”Hebrews 10:27

Who are these people?

The author explains.

HEBREWS 10:29 — WHAT IS THE “SIN”?

This is one of the most important verses in the entire passage:

“Of how much worse punishment, do you suppose, will he be thought worthy who has trampled the Son of God underfoot, counted the blood of the covenant by which he was sanctified a common thing, and insulted the Spirit of grace?” Hebrews 10:29

Now we can slow down.

Who is “he”?

He is the person described in the warning—one who has received the knowledge of the truth (v. 26) and then deliberately turns away from Christ.

And notice how the writer describes that turning away.

He tramples the Son of God underfoot.

He counts the blood of the covenant as a common thing.

He insults the Spirit of grace.

This is not simply a believer who has committed a deliberate transgression and then comes back to Christ in repentance.

This is rejection.

The person knows what Christ has done and then treats Christ as though He were of no value.

JOHN 16 GIVES US THE KEY

Now we can bring in something Jesus said that helps illuminate this whole question.

Jesus told His disciples what the Holy Spirit would do when He came:

“And when He has come, He will convict the world of sin, and of righteousness, and of judgment.” John 16:8

Then Jesus explains the first:

“Of sin, because they do not believe in Me.” John 16:9

That is striking.

Jesus does not define the fundamental issue of sin here merely as individual transgression.

He identifies the decisive issue as:

“They do not believe in Me.”

Unbelief.

And that takes us directly back to Hebrews.

Hebrews 3: unbelief.

Hebrews 4: failure to believe.

Hebrews 10: drawing back.

Hebrews 10: rejecting Christ.

The same fundamental danger runs through the argument.

The danger is not merely committing sin. The danger is rejecting the Savior from sin.

WHAT WERE THEY GOING BACK TO?

Now we can ask the historical question.

If these Jewish Christians were tempted to draw back, what were they drawing back to?

They were not moving from Christianity into atheism.

They were tempted to return to the religious system they already knew.

The sanctuary.

The priesthood.

The sacrifices.

The old covenant arrangement.

A system that had been established by God—but was never intended to replace Christ.

That distinction matters.

The Old Testament sacrificial system was not evil.

It was a shadow.

It pointed forward to Christ.

But once Christ had come, returning to the shadow as though it were still the ultimate reality would mean rejecting the fulfillment.

Hebrews had already said:

“For it is not possible that the blood of bulls and goats could take away sins.” Hebrews 10:4

Why would they go back?

Because the old system was familiar.

It was visible.

It was established.

It was part of their identity.

But Christ had fulfilled what those sacrifices could only represent.

The shadow could never replace the Reality.

CHRIST DID WHAT THE SACRIFICES COULD NEVER DO

Hebrews 10 continues:

“But this Man, after He had offered one sacrifice for sins forever, sat down at the right hand of God.” Hebrews 10:12

Notice the contrast.

The priests of the old system stood repeatedly offering sacrifices.

Christ offered one sacrifice.

Then He sat down.

Why?

Because His sacrificial work was complete.

And Hebrews says:

“For by one offering He has perfected forever those who are being sanctified.” Hebrews 10:14

Look at that language.

“Those who are being sanctified.”

There is our present-continuous dimension again.

Christ accomplished the sacrifice.

And Christ continues His work in His people.

The objective accomplishment and the present sanctifying work belong together.

THE NEW COVENANT

Hebrews then quotes Jeremiah:

“This is the covenant that I will make with them after those days, says the LORD: I will put My laws into their hearts, and in their minds I will write them.” Hebrews 10:16

This is not a return to human performance.

It is God's work in His people.

The law is written in the heart.

The Christian life is not merely external conformity.

It is the transformation that comes from Christ working within.

And then comes the astonishing conclusion:

“Their sins and their lawless deeds I will remember no more.” Hebrews 10:17

And because forgiveness has been accomplished:

“Now where there is remission of these, there is no longer an offering for sin.” Hebrews 10:18

Why?

Because Christ is enough.

SO WHAT DOES “NO LONGER REMAINS A SACRIFICE” MEAN?

Now Hebrews 10:26 becomes clearer.

“There no longer remains a sacrifice for sins.”

Why?

Because there is no alternative sacrifice.

There is no second Gospel.

There is no better priest.

There is no superior covenant.

There is no other Christ.

If someone rejects Christ and goes back to the shadows as though they can provide what Christ provides, they have rejected the only reality that can deal with sin.

There is nowhere else to go.

That is why the warning is so severe.

The problem is not that Christ has become unwilling to save.

The problem is that the person has rejected the only Savior.

THIS WOULD BE A VIOLATION OF WHAT CHRIST ACCOMPLISHED

Think about what turning back would mean.

Christ had come.

Christ had become one with humanity.

Christ had entered humanity's death.

Christ had offered Himself.

Christ had risen.

Christ had been exalted.

Christ had become High Priest.

And now the believer says:

“I am going back.”

Back to the old shadows.

Back to the old priesthood.

Back to the old sacrifices.

Back to a system that could never accomplish what Christ accomplished.

That is not simply a change in religious practice.

It is a rejection of the Gospel.

It says, in effect:

Christ is not enough.

And that is why Hebrews treats the matter so seriously.

HEBREWS 10:32 — REMEMBER WHAT HAPPENED

But notice something beautiful.

After the warning, the author reminds them of their own experience.

“But recall the former days in which, after you were illuminated, you endured a great struggle with sufferings.” Hebrews 10:32

They had already been illuminated.

They had already suffered for Christ.

They had already demonstrated their commitment.

The author continues:

“For you had compassion on me in my chains, and joyfully accepted the plundering of your goods, knowing that you have a better and an enduring possession for yourselves in heaven.” Hebrews 10:34

They had paid a price for following Christ.

Why?

Because they believed there was something better.

Now they are being tempted to abandon that confidence.

So the author says:

HEBREWS 10:35 — DO NOT THROW AWAY YOUR CONFIDENCE

“Therefore do not cast away your confidence, which has great reward.”Hebrews 10:35

There is the issue again.

Confidence.

Not performance.

Not self-sufficiency.

Not returning to the old system.

Confidence in Christ.

And then:

“For you have need of endurance, so that after you have done the will of God, you may receive the promise.”Hebrews 10:36

They need endurance.

They need to keep believing.

They need to keep trusting.

They need to hold fast.

HEBREWS 10:37–38 — FAITH OR DRAWING BACK

The author now quotes Habakkuk:

“For yet a little while, and He who is coming will come and will not tarry. Now the just shall live by faith; but if anyone draws back, My soul has no pleasure in him.”Hebrews 10:37–38

There are two directions.

Faith.

Or drawing back.

Trusting Christ.

Or abandoning Christ.

And then Hebrews gives us the conclusion:

“But we are not of those who draw back to perdition, but of those who believe to the saving of the soul.” Hebrews 10:39

There it is.

The author himself gives us the contrast.

BELIEVE.

Or:

DRAW BACK.

THE SIN HEBREWS WARNS ABOUT

So what is Hebrews warning these Jewish Christians about?

Not merely falling into a transgression.

Not a single moral failure.

Not the believer who falls and gets back up.

Not the person who struggles with sin and cries out to Christ.

The warning is about something much more deliberate:

Knowing the truth.

Knowing Christ.

Knowing the Gospel.

And then turning away.

The language of Hebrews is unmistakable:

Unbelief.

Hardening.

Departing.

Drawing back.

Trampling the Son of God.

Treating His blood as common.

Insulting the Spirit of grace.

The fundamental issue is not simply:

“Did you commit a sin?”

The deeper question is:

“Having heard the Gospel, will you continue to believe it?”

WHY THIS MATTERS TODAY

The warning of Hebrews is not merely an ancient warning to first-century Jewish Christians.

It reaches us because the temptation is still possible.

We can know the Gospel and still become fascinated with something else.

We can begin with Christ and slowly shift our confidence toward ourselves.

We can start by trusting His righteousness and end by trying to establish our own.

We can hear the Gospel and then gradually return to a system in which self becomes the source of righteousness.

And Hebrews says:

DON'T DRAW BACK.

Don't return to the shadows.

Don't replace Christ with religious performance.

Don't exchange the living reality for something that can never accomplish what Christ has already accomplished.

Hold fast.

THE GOSPEL DOES NOT CHANGE

The answer to Hebrews' warning is not fear.

It is Christ.

He is still the better sacrifice.

He is still the better Priest.

He is still the better covenant.

He is still the One who entered humanity.

He is still the One who died.

He is still the One who rose.

He is still the One who lives.

And He is still the One who ministers for His people.

The Gospel says:

God acted first.

Christ accomplished.

The Gospel announces.

Faith receives.

And the warning of Hebrews is:

Don't turn away from what you have received.

WHEN “SIN” MEANS UNBELIEF

Perhaps now we can understand Hebrews 10:26 differently.

“For if we sin willfully after we have received the knowledge of the truth...”

The danger is not simply that someone has committed a deliberate transgression.

The danger is that someone who knows the truth and deliberately rejects the Truth.

The danger is unbelief.

The danger is apostasy.

The danger is drawing back from Christ.

Because when Christ is rejected, there is no other sacrifice to which we can turn.

There is no other Savior.

There is no other priest.

There is no other Gospel.

There is nowhere else to go.

SO HOLD FAST

Hebrews does not end its warning by telling us to become frightened.

It tells us to believe.

“But we are not of those who draw back to perdition, but of those who believe to the saving of the soul.”Hebrews 10:39

That is where the author wants us to stand.

Not in ourselves.

Not in our performance.

Not in the old shadows.

Not in religious confidence.

But in Christ.

I am saved.

I am being saved.

I will be saved.

And the One who accomplishes all three is the same One Hebrews tells us never to abandon.

Jesus Christ.

Don't draw back.

Hold fast.

Believe.