Deep End Theology – A Faith For U Today Podcast

Companion Episode — Perseverance & Assurance

Can a true Christian fall away?

And if God really keeps His people, can a Christian actually know he or she is saved?

Those questions sound similar, but they are not identical.

That distinction matters because many sincere believers confuse the security of their salvation with the strength of their assurance.

On a good week, they feel close to Christ. Prayer comes easily. Scripture seems alive. Temptation feels manageable. They assume everything must be well.

Then comes a bad week.

Prayer becomes dry.

An old sin returns.

Doubt appears.

God feels distant.

And suddenly the question becomes:

“Am I even saved?”

The source for this companion episode makes an essential distinction. Perseverance concerns God’s gracious preservation of true believers so that they do not totally and finally fall away. Assurance concerns the believer’s settled confidence that he or she actually belongs to Christ. Perseverance is about God’s keeping; assurance is about our knowing.

That means a Christian can be genuinely held by Christ while struggling deeply to feel certain of it.

God’s grip can remain steady while our sense of His grip trembles.

And understanding that difference can bring enormous pastoral relief.

Salvation and Assurance Are Not the Same Thing

This may be the most important place to begin.

A person can possess something without possessing perfect confidence that he has it.

The reality and the awareness are related, but they are not identical.

So it is with salvation.

The foundation of salvation is Jesus Christ.

His righteousness.

His atoning death.

His resurrection.

His intercession.

The promises of God.

The preserving work of the Holy Spirit.

Assurance is our growing confidence that these promises belong to us because we belong to Christ.

If we confuse the two, every season of doubt begins to feel like a season of lost salvation.

That is spiritually exhausting.

A believer begins thinking:

“I don’t feel secure, therefore I must not be secure.”

But feelings are not infallible interpreters of spiritual reality.

The source specifically emphasizes that a genuine believer may struggle to feel certain even while God’s saving grip remains unchanged.

That does not make doubt harmless.

It means doubt must be treated pastorally rather than automatically equated with unbelief.

Scripture Actually Wants Christians to Have Assurance

Some Christians have been taught that strong assurance is spiritually dangerous.

Perhaps humility means never really knowing.

Perhaps saying “I know I belong to Christ” sounds presumptuous.

But First John says otherwise.

John explains that he writes so believers may know they have eternal life.

Paul speaks of the Holy Spirit bearing witness with our spirit that we are children of God.

Peter tells believers to be diligent to confirm their calling and election.

Scripture does not present settled confidence in Christ as spiritual arrogance.

True assurance is not:

“I am certain because I am impressive.”

It is:

“I am certain because Christ is trustworthy.”

That is an entirely different kind of confidence.

Assurance Must Not Become Presumption

But Scripture also refuses counterfeit assurance.

Someone may say:

“I accepted Jesus years ago. I’m good.”

Meanwhile there is no repentance.

No desire for Christ.

No concern about continuing unbelief.

No struggle against sin.

No evidence that the Gospel matters beyond a past religious moment.

That is not what the Reformed tradition means by assurance.

The source draws a sharp distinction between assurance and presumption. If someone is comfortable living in ongoing, unrepentant sin while claiming security, Scripture’s warnings should be allowed to disturb that confidence.

Biblical assurance does not say:

“My life does not matter.”

It says:

“My works are not the ground of my salvation, but the Christ who saves me does not leave me unchanged.”

Start With Christ, Not Yourself

When Christians struggle with assurance, the instinct is often to look inward.

Do I believe strongly enough?

Have I repented sincerely enough?

Am I growing enough?

Do I pray enough?

Do I love God enough?

Do I hate my sin enough?

Some self-examination is biblical.

Second Corinthians tells believers to examine themselves.

Second Peter calls Christians to confirm their calling and election.

But introspection can become unhealthy when the believer begins treating his own spiritual condition as the primary foundation of assurance.

The source gives better pastoral counsel to the frightened Christian:

Do not begin with God’s hidden decree.

Begin with the open Christ.

His promises.

His cross.

His invitation.

His willingness to receive sinners.

Before asking, “Is my faith strong enough?” ask:

“Is Christ strong enough?”

Before asking, “Have I held onto Him perfectly?” ask:

“Has He promised to hold His people?”

That changes the direction of assurance.

Faith Is Not the Savior

We touched this briefly in the previous episode, but it becomes even more important here.

Faith does not save because faith itself is impressive.

Faith saves because of the One it receives.

A trembling hand can receive a valuable gift.

The value is not in the steadiness of the hand.

It is in the gift.

Likewise, weak faith can rest upon a strong Christ.

A believer may say:

“I believe, but I am struggling.”

That struggle does not automatically prove faith is absent.

Sometimes the person most terrified that he does not love Christ is terrified precisely because Christ matters so deeply to him.

That fear should not simply be dismissed.

But neither should it automatically be treated as proof of spiritual death.

Doubt Can Have Different Causes

Not all doubt comes from the same place.

Sometimes doubt grows from weak faith.

Sometimes from severe temptation.

Sometimes from suffering or trauma.

Sometimes from spiritual exhaustion.

Sometimes from a poorly taught understanding of salvation.

Sometimes from excessive introspection.

And sometimes assurance is weakened because the believer is concealing sin.

That last possibility must not be ignored.

The Westminster tradition recognizes that believers may lose much of their sense of God’s favor through negligence, temptation, serious sin, and other seasons of spiritual darkness. The source notes this explicitly while maintaining that the loss of assurance is not identical to the loss of salvation itself.

So the pastoral response must depend partly upon the condition of the person.

The tender conscience needs comfort.

The complacent conscience needs warning.

The Tender Conscience Needs Christ, Not More Terror

Some Christians are almost painfully aware of their sin.

They are not looking for permission to rebel.

They are frightened that every failure means Christ has rejected them.

They read warning passages and immediately assume every warning describes them.

They see the sins of others and fear they will eventually become the same.

They examine themselves until examination becomes despair.

To that person, Scripture does not say:

“Become spiritually stronger before returning to Christ.”

It says:

Come.

The bruised reed is not broken.

The faintly burning wick is not extinguished.

The Savior receives sinners.

The believer struggling with assurance should not wait until he feels worthy of Christ.

Feeling worthy would itself reveal that he had misunderstood grace.

The Complacent Conscience Needs the Warnings

But another person needs something different.

He feels no particular concern about sin.

Repentance seems unnecessary.

Christ may be professed verbally, but He exercises little actual claim upon life.

The person wants assurance without discipleship.

Comfort without repentance.

Security without perseverance.

That person should hear Hebrews.

The warnings are not cruel interruptions of the Gospel.

They are part of God’s pastoral care.

The source calls them real instruments by which false faith is exposed, wanderers are called back, and true believers are kept clinging to Christ.

God’s promises comfort.

God’s warnings awaken.

We need both.

Hebrews 6 and Hebrews 10 Should Not Be Neutralized

Hebrews contains some of the most difficult passages in the New Testament.

They describe people who have tasted heavenly gifts, shared in remarkable covenant privileges, and then fallen away.

Hebrews 10 warns of terrifying judgment for deliberately trampling upon Christ.

Christians have interpreted these texts differently.

Arminian and Wesleyan traditions commonly understand them as describing genuine believers who may finally apostatize.

The Reformed interpretation generally sees them as describing people with profound participation in the covenant community and real exposure to God’s gifts without necessarily possessing saving union with Christ.

But the Reformed answer should never make the warnings imaginary.

They must still warn.

The source is careful here: Scripture is clear that the warnings are meant to be heard and obeyed, even while Christians disagree about precisely how every apostasy passage should be interpreted.

That is a healthy posture.

We should not explain away what God intends to use.

Temporary Faith Can Look Very Real

One reason assurance becomes complicated is that outward appearance does not always tell the whole story.

Jesus speaks of people who receive the Word with joy and later wither.

He warns that some will say, “Lord, Lord,” despite never truly belonging to Him.

First John speaks of people whose departure reveals that they were not truly of the Church in the deepest sense.

This means someone can be very close to Christian things without being united savingly to Christ.

Church attendance.

Religious emotion.

Bible knowledge.

Ministry involvement.

Spiritual experiences.

Even dramatic enthusiasm can exist without enduring faith.

That truth should sober us.

But it should not make every quiet or struggling believer assume he is false.

False faith can look impressive.

Real faith can look weak.

Only God sees the heart perfectly.

Assurance Is Grounded First in God’s Promises

Reformed theology has traditionally spoken of several supports for assurance.

But the order matters.

First comes God’s promise in Christ.

Christ is the objective ground.

The Spirit bears witness.

And the fruit of a changed life ordinarily confirms what grace is doing.

The source repeatedly warns against reversing that order.

If we begin with our performance, assurance becomes unstable.

Have I obeyed enough?

Loved enough?

Changed enough?

That approach either produces despair or pride.

The Gospel begins somewhere better.

Jesus Christ is sufficient.

Then, from that foundation, believers can look at the Spirit’s work and recognize evidence of grace.

Fruit Matters, but Fruit Is Not the Foundation

This distinction protects us from two opposite errors.

Some Christians say:

“Never examine fruit. Just believe.”

But Scripture does speak about repentance, love, perseverance, and obedience as evidences of spiritual life.

First John repeatedly does this.

James refuses to separate living faith from fruit.

The opposite error makes fruit the ground of acceptance.

Then every imperfect Christian becomes terrified.

The proper order is:

Christ is the ground.

Faith receives Christ.

The Spirit produces fruit.

Fruit confirms but does not replace Christ.

That makes examination useful without making it the Gospel.

What Does Self-Examination Actually Look Like?

Healthy self-examination asks questions like:

Am I trusting Christ rather than myself?

When I sin, do I excuse it or eventually repent?

Do I want to know God?

Is there evidence of love for God’s people?

Do I care that my life increasingly reflects Christ?

Do I continue returning to Him even when my faith feels weak?

Unhealthy examination becomes endless measurement.

Was that repentance genuine enough?

Was that prayer emotional enough?

Did I feel the right thing?

Am I progressing as quickly as another Christian?

Eventually the person stops looking at Christ altogether.

The mirror becomes the whole world.

Self-examination should send us toward Christ, not trap us inside ourselves.

The Spirit Bears Witness

Romans 8 speaks of the Spirit bearing witness with our spirit that we are children of God.

This should prevent us from reducing assurance to cold deduction.

Christian assurance has a deeply personal dimension.

The Holy Spirit works through God’s Word, produces filial trust, teaches us to cry “Abba, Father,” and confirms our belonging.

But this witness should not be reduced to a particular emotional sensation.

Some believers experience profound seasons of joy.

Others possess a quieter steadiness.

Feelings rise and fall.

The Spirit’s work is larger than emotion.

The Ordinary Means Matter More Than We Think

One of the strongest pastoral themes in the source is the importance of ordinary means of grace.

Word.

Prayer.

Sacraments.

Fellowship.

The Church.

These things can sound ordinary because they are.

And that is precisely the point.

God often strengthens assurance through ordinary grace.

A sermon reminds us of Christ.

The Lord’s Supper places the promise before our senses.

A mature Christian speaks truth when our thoughts become distorted.

Prayer brings fear into God’s presence.

Scripture corrects what emotion has been telling us.

The source notes that the Westminster Confession connects growing assurance with the proper use of ordinary means.

Do not despise the ordinary because you are waiting for something dramatic.

God often steadies trembling saints slowly.

What If I Feel Nothing?

Spiritual numbness is frightening.

A believer may remember earlier seasons of intense affection and wonder why everything now feels distant.

The temptation is to interpret emotional flatness as spiritual death.

Sometimes numbness does reveal neglected spiritual health.

Sometimes hidden sin needs confession.

Sometimes exhaustion or suffering has taken a heavy toll.

But the immediate answer is not panic.

The source recommends concrete, ordinary steps: confess sin honestly, read a Gospel-centered passage such as John 10 or Romans 8, pray simply, and reach out to a mature believer or pastor.

That advice is intentionally unremarkable.

When the soul is weak, you may not need a spiritual spectacle.

You may need bread.

Serious Sin Can Cloud Assurance

Christians can fall seriously.

David proves it.

Peter proves it.

The Reformed doctrine of perseverance has never required pretending genuine believers commit only respectable sins.

But serious sin brings real spiritual consequences.

The conscience becomes wounded.

Prayer may become difficult.

The sense of God’s favor may fade.

Fatherly discipline can be severe.

This is not evidence that sin does not matter.

It is precisely because believers belong to God that He disciplines them.

Hebrews 12 describes discipline as fatherly love.

The appropriate response is not to hide.

Repent.

Bring sin into the light.

Receive correction.

Return to Christ.

God’s discipline is not the rejection of a child.

Assurance Should Produce Obedience, Not Laziness

A healthy assurance says:

“I belong to Christ. Therefore I want to walk with Him.”

Counterfeit assurance says:

“I belong to Christ. Therefore I can ignore Him.”

Those are not the same thing.

The source is blunt: if someone’s assurance makes that person careless about sin, it may be counterfeit confidence rather than biblical assurance.

Grace creates gratitude.

And gratitude produces obedience.

Not perfectly.

But genuinely.

The believer does not obey to keep Christ interested.

We obey because Christ has made us His own.

Perseverance Is a Promise of the Covenant of Grace

The source gives the Reformed synthesis clearly.

Perseverance rests upon God’s covenant grace, Christ’s purchase and intercession, the Spirit’s abiding work, and the Father’s electing love.

That brings the whole TULIP series together.

The Father does not elect and then forget.

The Son does not redeem and then lose those He purchased.

The Spirit does not give life and then permanently abandon the work.

The triune God saves.

That is why perseverance is not ultimately the achievement of a stubborn Christian who refused to quit.

It is grace from beginning to end.

Different Traditions Understand Assurance Differently

Christian traditions have approached this subject differently.

Arminian and Wesleyan theology commonly teaches that genuine believers may finally abandon Christ. Assurance can therefore be real, but final security remains conditional upon continued faith.

Roman Catholic theology traditionally rejects ordinary certainty of final salvation apart from special revelation and teaches that justification can be lost through mortal sin and restored.

Some popular forms of eternal security move in the opposite direction, treating a past profession of faith as sufficient evidence regardless of subsequent unbelief or unrepentant living.

Reformed theology attempts to hold security and perseverance together: God preserves true believers, and His preservation produces continuing faith and repentance. Assurance is possible, but it may fluctuate, and it should never be detached from Christ’s present work in the believer.

What If Someone I Love Walks Away?

Do not pretend it does not matter.

And do not pretend you can see the person’s eternal state perfectly.

Grieve.

Pray.

Call them back.

Warn them.

Keep the Gospel clear.

Do not comfort someone in active apostasy by appealing to a profession made years earlier.

But also do not act as though you possess God’s omniscience.

The source wisely warns that Scripture gives enough clarity to discern fruit and take apostasy seriously without allowing us to see every inner reality of another person’s heart.

Leave final judgment to God.

Keep calling people to Christ.

The Anxious Christian Should Not Live as an Employee on Probation

Perhaps this is where the entire discussion becomes most personal.

Many Christians live emotionally like employees undergoing constant evaluation.

Every day brings a new performance review.

Good devotional week?

God is pleased.

Bad week?

Status uncertain.

Sin badly?

Perhaps fired.

This is not the security of adoption.

The Christian is not an employee attempting to keep a position.

In Christ, we are children.

That does not eliminate discipline.

Good fathers discipline their children.

But discipline occurs within belonging.

The child does not become a stranger every time correction is necessary.

That is one reason perseverance and assurance matter so deeply.

The Gospel gives us something stronger than a probationary relationship with God.

Your Assurance May Tremble While Christ Does Not

This distinction deserves to be remembered.

Your assurance may weaken.

Christ’s intercession does not.

Your emotions may fluctuate.

The Father’s purpose does not.

Your perception of God’s love may become clouded.

The cross does not change.

Your faith may sometimes feel embarrassingly small.

The Savior does not become smaller with it.

Perseverance is objective.

Assurance is subjective.

God’s grip is the reality.

Our sense of that grip can grow stronger or weaker.

So when assurance trembles, do not make the trembling itself your final authority.

Look again to Christ.

Completing the Five Petals of Grace

This companion episode brings TULIP: The Five Petals of Grace to its close.

We began by asking whether TULIP is merely a theological system or whether these doctrines actually help Christians understand the Gospel.

Then we walked through the five petals.

Total Depravity showed us that sin reaches too deeply for self-salvation.

Unconditional Election taught us that God’s saving love does not begin with foreseen human superiority.

Definite Atonement showed us a Savior who does not merely make redemption possible but actually purchases a people.

Effectual Calling showed us the Holy Spirit giving life and bringing sinners willingly to Christ.

Perseverance of the Saints showed us the God who does not abandon what He begins.

And now assurance brings those truths into the conscience of the believer.

Can I really rest?

Can I know Christ is mine?

Scripture says assurance is possible.

Not because you finally become spiritually impressive.

Because Jesus Christ is trustworthy.

Thank You for Walking Through This Series

If you have stayed through the entire Five Petals of Grace series, thank you.

These doctrines can generate controversy, and there are real disagreements among Christians who sincerely want to honor Scripture.

But the goal was never to win a theological competition.

The goal was Christ.

If these doctrines are understood correctly, they should leave us with less reason to boast in ourselves and more reason to worship.

More patience with unbelievers.

More confidence in prayer.

More seriousness about holiness.

More courage in evangelism.

More dependence upon the Holy Spirit.

And deeper rest in Jesus Christ.

TULIP should never become a badge announcing that we belong to the clever theological people.

It should become a confession:

I could not rescue myself.

God was merciful.

Christ truly saves.

The Spirit gives life.

And the God who began this work will bring His people home.

So when your conscience accuses you, do not answer by pretending you have no sin.

Confess it.

When your faith feels weak, do not pretend weakness is strength.

Bring the weakness to Christ.

When assurance becomes clouded, use the means God has given.

And when you fear that your grip on Jesus is not strong enough, remember the truth that has carried this entire series:

Your hope was never ultimately the strength of your grip on Him.

It is the strength of His grip on you.

All glory belongs to God.