The Process: Sanctification

Prayer and Recap

Part I of the series we spoke about “Sin” Sin is any thought, attitude, desire, word, action, or failure to act that violates God's character, commands, or revealed will.

Part II of the series addressed “Sanctification” Sanctification literally describes the process of setting something apart for a sacred purpose.

Week 3 — The Process: Sanctification

Primary Text

John 17:14–19

Theme

The Process: Sanctification

Key Verse

“Sanctify them by the truth; your word is truth.”

— John 17:17

Transformation Formula

WORD + SPIRIT + OBEDIENCE

Central Truth

Sanctification is God's ongoing work, in which the Holy Spirit uses the truth of God's Word to transform believers as they respond in faith, repentance, surrender, and obedience.

Lesson Objective

By the end of this study, the congregation should understand:

1. Why Jesus prayed for the sanctification of His disciples.

2. How God's Word functions in spiritual transformation.

3. How the Holy Spirit empowers sanctification.

4. Why obedience is necessary without becoming a means of earning salvation.

5. The difference between conviction, repentance, and transformation.

6. Why sanctification happens while believers remain engaged with the world.

7. How to cooperate with God's sanctifying work in everyday life.

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I. CONNECTING WEEK 2 TO WEEK 3

In Week 1, we learned:

THE PROBLEM IS SIN.

“For all have sinned…”

— Romans 3:23

In Week 2, we learned:

SANCTIFICATION MEANS BEING SET APART FOR GOD.

We are no longer our own.

We belong to Christ.

But that creates the next question:

If I belong to Christ, how does God actually change me?

Does transformation happen automatically?

Does God change everything instantly?

Is sanctification simply self-discipline?

Is it willpower?

Is it church attendance?

Is it memorizing rules?

John 17 gives us a foundational answer.

GOD SANCTIFIES HIS PEOPLE THROUGH TRUTH.

And elsewhere Scripture makes clear that this happens through the active work of the Holy Spirit, with believers responding in obedience.

Thus:

WORD + SPIRIT + OBEDIENCE

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II. HISTORICAL & CULTURAL BACKGROUND

Author — John the Apostle

The Gospel of John is traditionally attributed to John the Apostle, son of Zebedee and brother of James.

John was one of Jesus' Twelve disciples and part of the smaller inner circle of:

Peter

James

John

John witnessed major events in Jesus' ministry, including:

• The Transfiguration

• Jesus' miracles

• His teaching

• The Last Supper

• The crucifixion

• The empty tomb

• The risen Christ

John later writes with one stated purpose:

“But these are written that you may believe that Jesus is the Messiah, the Son of God…”

— John 20:31

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III. APPROXIMATE DATE AND AUDIENCE

John's Gospel is often dated around AD 85–95, though proposed dates vary.

The events recorded in John 17 occurred much earlier, near the end of Jesus' earthly ministry, approximately AD 30–33.

Target Audience

John writes for a broad Christian readership.

His Gospel speaks to:

• Jewish readers familiar with Scripture

• Gentile readers encountering Jesus

• Existing believers needing stronger faith

• Those considering the claims of Christ

John's purpose is as theological as it is historical.

He wants readers not merely to know events about Jesus, but to understand who Jesus is.

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IV. THE IMMEDIATE CONTEXT — JOHN 13–17

John 17 cannot be understood properly without the setting.

Jesus is approaching the cross.

He knows that:

Judas will betray Him.

Peter will deny Him.

The disciples will scatter.

He will be arrested.

He will be crucified.

And yet Jesus is preparing His disciples to continue His mission.

John 13–17 records Jesus' final extended instruction before His arrest.

These chapters include:

• Servanthood

• Love

• The promise of the Holy Spirit

• Union with Christ

• Persecution

• Prayer

• Mission

• Sanctification

• Unity

John 17 then records what is commonly called:

THE HIGH PRIESTLY PRAYER OF JESUS.

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V. THE STRUCTURE OF JOHN 17

Jesus prays in three broad movements.

1. Jesus prays concerning Himself

John 17:1–5

2. Jesus prays for His immediate disciples

John 17:6–19

3. Jesus prays for future believers

John 17:20–26

This is important.

Jesus' prayer does not stop with Peter, James, John, and the original disciples.

Verse 20 says:

“My prayer is not for them alone. I pray also for those who will believe in me through their message…”

That reaches forward to the church.

It reaches us.

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VI. JESUS DOES NOT PRAY FOR ESCAPE

John 17:15:

“My prayer is not that you take them out of the world…”

This is crucial.

Jesus knew the world would:

• Oppose them

• Tempt them

• Pressure them

• Misunderstand them

• Sometimes persecute them

Yet Jesus does not say:

“Father, remove them from every difficult environment.”

Instead, He says:

“…protect them from the evil one.”

This teaches us something important about sanctification.

SANCTIFICATION IS NOT ESCAPE FROM THE WORLD.

It is learning to live faithfully within the world without being conformed to it.

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VII. IN THE WORLD, BUT NOT OF THE WORLD

John 17:16:

“They are not of the world, even as I am not of it.”

Jesus makes an identity distinction.

Believers remain geographically present in the world.

But spiritually, our allegiance has changed.

We belong to Christ.

Therefore:

We live here.

But this world does not define us.

We interact with culture.

But culture does not become our authority.

We love people.

But we do not adopt every value they embrace.

We serve the world.

But we do not belong to its system of rebellion against God.

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VIII. THE PRAYER — “SANCTIFY THEM”

John 17:17:

“Sanctify them by the truth; your word is truth.”

The Greek verb is:

ἁγιάζω — hagiazō

Meaning:

To sanctify

To consecrate

To make holy

To set apart for God

Jesus is asking the Father to set His disciples apart for God's purposes and make them holy.

This confirms what we learned in Week 2:

Sanctification is both:

Separation from sin

and

Dedication to God.

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IX. THE MEANS — “BY THE TRUTH”

Jesus does not merely pray:

“Sanctify them.”

He identifies the means:

“Sanctify them by the truth…”

Then He defines the truth:

“…your word is truth.”

GOD'S WORD IS CENTRAL TO SANCTIFICATION.

The believer cannot become increasingly Christlike while consistently resisting, ignoring, or replacing God's truth.

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X. WHY DOES TRUTH MATTER?

Because sin is not merely behavioral, Sin also corrupts:

Thinking

Desires

Values

Priorities

Assumptions

Judgments

A person may sincerely believe something that is contrary to God's truth.

Sincerity alone does not make it righteous.

Therefore, sanctification must include a renewed mind.

Romans 12:2 says:

“Do not conform to the pattern of this world, but be transformed by the renewing of your mind.”

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XI. THE TRANSFORMATION PROCESS THROUGH THE WORD

Teach this progression:

THE WORD REVEALS TRUTH

↓

TRUTH EXPOSES ERROR

↓

ERROR IS CONFRONTED

↓

THE MIND IS RENEWED

↓

DESIRES BEGIN TO CHANGE

↓

DECISIONS BEGIN TO CHANGE

↓

BEHAVIOR BEGINS TO CHANGE

↓

CHARACTER IS FORMED

This is why biblical preaching, teaching, study, meditation, and application matter.

God's Word does not merely give us information.

God uses it for our formation.

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XII. THE MIRROR FUNCTION OF THE WORD

James 1:22–25 compares God's Word to a mirror.

A mirror shows us what we actually look like.

But there are two possible responses.

Wrong Response

Look – See - Walk Away - Forget

Right Response

Look – See - Agree with God – Respond - Change

“This is where obedience enters the sanctification process.”

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XIII. THE HOLY SPIRIT AND SANCTIFICATION

John 17 emphasizes truth.

But Jesus had already promised the Holy Spirit.

John 14:16–17 speaks of the Spirit of truth.

John 14:26 says the Holy Spirit would teach the disciples.

John 16:13 says:

“When he, the Spirit of truth, comes, he will guide you into all the truth.”

The Holy Spirit is therefore essential to sanctification.

THE WORD REVEALS TRUTH - THE SPIRIT APPLIES AND EMPOWERS TRUTH.

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XIV. THE SPIRIT DOES NOT REPLACE THE WORD

This distinction is important.

The Holy Spirit does not lead Christian’s contrary to Scripture.

He inspired Scripture and works consistently with God's revealed truth.

Therefore, we should be cautious about saying:

“The Spirit told me…” if what follows clearly contradicts God's Word.

The Spirit of truth will not lead us into falsehood.

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XV. THE WORD WITHOUT THE SPIRIT

We can know biblical information without spiritual transformation.

The Pharisees knew Scripture, yet Jesus repeatedly confronted them because their hearts were hardened.

Information alone can produce:

Pride

Argument

Religious superiority

without producing Christlikeness.

Therefore:

KNOWLEDGE MUST MOVE TO TRANSFORMATION.

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XVI. THE SPIRIT WITHOUT TRUTH

The opposite extreme is equally dangerous.

If we pursue spiritual experiences without biblical truth, we become vulnerable to:

• Emotionalism

• False teaching

• Subjective impressions

• Manipulation

• Confusion

• Experiences that contradict Scripture

Biblical sanctification requires both:

SPIRIT AND TRUTH.

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XVII. THE BELIEVER'S ROLE — OBEDIENCE

Now we come to the third part:

WORD + SPIRIT + OBEDIENCE

God's Word reveals.

God's Spirit empowers.

The believer responds.

Jesus said:

“If you love me, keep my commands.”

— John 14:15

“Obedience does not earn salvation, but genuine faith produces a willingness to obey.”

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XVIII. PHILIPPIANS 2:12–13 — GOD WORKS, WE RESPOND

Paul writes:

“…continue to work out your salvation with fear and trembling, for it is God who works in you…”

Notice both sides.

GOD WORKS IN.

WE WORK OUT.

Sanctification is not:

“God does everything, so I do nothing.”

Nor is it:

“I can make myself holy without God.”

The biblical pattern is:

God works within us, enabling us to obey what He commands.

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XIX. GALATIANS 5 — WALK BY THE SPIRIT

Galatians 5:16 says:

“Walk by the Spirit, and you will not gratify the desires of the flesh.”

Notice the command:

WALK.

Walking implies:

Movement – Direction – Progress - Daily dependence

The Christian life is not a single emotional moment; it is a continuing walk.

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XX. THE WORKS OF THE FLESH VS. THE FRUIT OF THE SPIRIT

Galatians 5 contrasts two ways of living.

Flesh

Sexual immorality

Impurity

Hatred

Discord

Jealousy

Fits of rage

Selfish ambition

Envy

Drunkenness

Spirit

Love

Joy

Peace

Patience

Kindness

Goodness

Faithfulness

Gentleness

Self-control

This gives us an important measurement of sanctification.

The question is not merely:

“What church activities am I doing?”

Ask ourselves:

“What kind of person am I becoming?”

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XXI. CONVICTION — WHEN TRUTH REACHES THE HEART

The Spirit uses truth to reveal areas inconsistent with God's character.

This is conviction.

Conviction is not simply:

Feeling terrible about yourself.

Biblical conviction is specific.

It identifies:

“This attitude is wrong.”

“This relationship is dishonoring God.”

“This habit must change.”

“This unforgiveness cannot remain.”

“This pride must be surrendered.”

Conviction points toward repentance.

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XXII. CONVICTION VS. CONDEMNATION

This distinction can help believers.

CONDEMNATION SAYS:

“You are hopeless.”

“There is no grace for you.”

“Hide from God.”

CONVICTION SAYS:

“This is sin.”

“Bring it into the light.”

“Repent.”

“Receive God's grace.”

“Walk differently.”

Romans 8:1 says:

“Therefore, there is now no condemnation for those who are in Christ Jesus.”

God's conviction calls us toward Him, not away from Him.

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XXIII. REPENTANCE — THE TURN

Key Greek word:

μετάνοια — metanoia

Repentance involves a changed mind that results in a changed direction.

Repentance says:

GOD IS RIGHT.

I AM WRONG.

I WILL STOP DEFENDING THIS.

I WILL TURN TOWARD GOD.

This is why genuine sanctification requires ongoing repentance.

Not because Christians repeatedly lose salvation.

But because God continually reveals areas requiring surrender and transformation.

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XXIV. CONFESSION

1 John 1:9:

“If we confess our sins, he is faithful and just and will forgive us our sins and purify us…”

The Greek idea behind confession involves agreeing with God.

Confession is more than saying:

“I'm sorry.”

It says:

“God, You are right about this.”

We stop renaming what God calls sin.

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XXV. OBEDIENCE COMPLETES THE RESPONSE

It is possible to:

Hear truth

without

Obeying truth.

James warns against this.

Therefore, a sanctifying response looks like:

HEAR – BELIEVE – CONFESS – REPENT – OBEY - GROW

The goal is not to hear more sermons while remaining unchanged, but to do things differently.

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XXVI. WHY CHANGE CAN BE GRADUAL

Some changes happen quickly; others take time.

God may immediately deliver someone from one pattern while progressively working through another. This is why sanctification is often described as progressive.

2 Corinthians 3:18 speaks of believers:

“…being transformed into his image with ever-increasing glory…”

Transformation is real, but it is often progressive.

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XXVII. PROGRESS IS NOT PERFECTION

This protects believers from two errors.

Error 1 — Complacency

“Nobody's perfect, so change doesn't matter.”

Wrong; God calls us to grow.

Error 2 — Despair

“I'm not perfect yet, so God must not be working.”

Also, wrong.

The question is:

Is there spiritual progress?

Not: Have I reached sinless perfection?

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XXVIII. SANCTIFICATION OF THE MIND

Romans 12:2:

“Be transformed by the renewing of your mind.”

Ask:

What am I continually watching?

What am I continually listening to?

Who shapes my worldview?

What voices influence me more than Scripture?

Because:

Whatever continually disciples the mind will eventually influence the life.

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XXIX. SANCTIFICATION OF THE BODY

1 Thessalonians 4:3 says:

“It is God's will that you should be sanctified…”

Paul immediately connects sanctification to sexual purity and bodily self-control.

This means the body is not outside God's concern.

The gospel reaches:

Sexuality

Appetites

Habits

Physical conduct

Self-control

1 Corinthians 6:20 says:

“Therefore honor God with your bodies.”

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XXX. SANCTIFICATION OF SPEECH

Ephesians 4:29 says:

“Do not let any unwholesome talk come out of your mouths…”

The sanctified life includes sanctified speech.

Ask:

• Is my speech truthful?

• Do I gossip?

• Do I tear people down?

• Do I use words to manipulate?

• Do I speak differently in church than elsewhere?

• Do my words give grace?

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XXXI. SANCTIFICATION OF RELATIONSHIPS

Colossians 3 calls believers to:

Compassion – Kindness – Humility – Gentleness – Patience – Forgiveness - Love

Therefore, sanctification is tested relationally. It is easier to appear holy when nobody is frustrating us.

Maturity becomes visible in how we respond when:

We are offended.

We are misunderstood.

We do not get our way.

Someone disappoints us.

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XXXII. SANCTIFICATION THROUGH TRIALS

God can also use suffering to transform us.

James 1:2–4 teaches that trials produce perseverance and maturity.

Romans 5:3–5 describes suffering producing:

Perseverance – Character - Hope

God does not waste difficulty.

Trials often expose what comfort hides.

Pressure reveals:

• Fear

• Pride

• Impatience

• Control

• Dependence

• Faith

God can use those moments to deepen holiness.

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XXXIII. SANCTIFICATION THROUGH DISCIPLINE

Hebrews 12 teaches that God disciplines His children.

Discipline is not abandonment; it is evidence of fatherly involvement.

Hebrews 12:10 says God disciplines us:

“…in order that we may share in his holiness.”

This is a powerful sanctification passage.

God loves us too much to leave destructive patterns unchallenged.

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XXXIV. SANCTIFICATION THROUGH CHRISTIAN COMMUNITY

God often uses other believers in our growth.

Proverbs 27:17:

“As iron sharpens iron, so one person sharpens another.”

Hebrews 10:24–25 calls believers to encourage one another toward love and good deeds.

Christian community provides:

Encouragement

Accountability

Correction

Prayer

Example

Support

Isolation can conceal areas that a healthy Christian community exposes and strengthens.

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XXXV. PASTORAL ILLUSTRATION — THE GARDEN

Think of a garden.

A gardener does not simply plant a seed and walk away.

There must be:

Water

Light

Cultivation

Pruning

Removal of weeds

Time

Spiritual growth works similarly.

God's Word is like seed and nourishment.

The Spirit gives life and growth.

Obedience is our faithful response.

Repentance removes what chokes growth.

Trials and discipline can function like pruning.

The goal is:

FRUIT.

Jesus says in John 15:8:

“This is to my Father's glory, that you bear much fruit…”

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XXXVI. THE DANGER OF RESISTANCE

Sanctification requires surrender.

We can resist what God is exposing.

Acts 7:51 speaks of resisting the Holy Spirit in a broader context.

Ephesians 4:30 warns:

“Do not grieve the Holy Spirit of God…”

How might believers resist sanctification?

By:

Ignoring conviction - Defending sin - Rejecting biblical correction - Avoiding accountability - Refusing forgiveness - Choosing culture over Scripture - Hearing without obeying

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XXXVII. A PRACTICAL SANCTIFICATION CYCLE

Repeatable process:

1. REVELATION

What does God's Word say?

2. CONVICTION

Where does my life disagree with God's truth?

3. CONFESSION

Will I agree with God?

4. REPENTANCE

What must I turn from?

5. SURRENDER

Will I yield this area to God?

6. OBEDIENCE

What must I now do differently?

7. DEPENDENCE

Will I rely on the Holy Spirit rather than myself?

8. TRANSFORMATION

Christ's character increasingly becomes visible.

Then the process repeats as God continues forming us.

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XXXVIII. DISCUSSION QUESTIONS

Understanding the Text

1. Why did Jesus pray that the disciples remain in the world rather than be removed from it?

2. What does “sanctify them by the truth” mean?

3. Why is God's Word essential to sanctification?

4. What is the Holy Spirit's role in transformation?

5. Why is obedience necessary if we are saved by grace?

Personal Examination

6. Is there something God's Word has already shown you that you have not obeyed?

7. How can Christians distinguish conviction from condemnation?

8. What voices are shaping your mind besides Scripture?

9. Where have you seen genuine spiritual progress in your life?

10. In what area might God currently be calling you to deeper surrender?

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XXXIX. WEEKLY PRACTICAL CHALLENGE — WORD + SPIRIT + OBEDIENCE

For the next seven days, practice this daily.

STEP 1 — WORD

Read a portion of Scripture slowly.

Ask: “What is God revealing?”

STEP 2 — SPIRIT

Pray: “Holy Spirit, show me where my life is not aligned with this truth.”

STEP 3 — OBEDIENCE

Ask: “What will I do today because of what I have read?”

Write down one concrete action.

Not merely: “I need to be more loving.”

But:

“I will forgive this person.”

“I will apologize.”

“I will stop this conversation.”

“I will remove this temptation.”

“I will tell the truth.”

“I will serve this person.”

Sanctification becomes practical when truth becomes obedience.

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XL. WEEK 3 SUMMARY

WHO SANCTIFIES?

GOD.

THROUGH WHAT?

HIS TRUTH.

BY WHOSE POWER?

THE HOLY SPIRIT.

WHAT IS OUR RESPONSE?

FAITH, REPENTANCE, SURRENDER, AND OBEDIENCE.

WHERE DOES IT HAPPEN?

WHILE WE LIVE IN THE WORLD.

WHAT IS THE RESULT?

CHRISTLIKE CHARACTER.

Therefore:

WORD + SPIRIT + OBEDIENCE = TRANSFORMATION

Not as a mechanical formula, but as a biblical framework for understanding how God forms His people.

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XLI. CLOSING TEACHING DECLARATION

Jesus did not pray:

“Father, make their lives easy.”

He prayed:

“Sanctify them.”

He did not ask the Father to remove every pressure; He prayed that they would remain faithful under pressure. He did not ask that they escape the world; He prayed that they would be holy in the world.

And He identified the instrument:

“Your word is truth.”

The sanctified life is therefore not built merely on:

Emotion.

Tradition.

Personal opinion.

Culture.

Good intentions.

It is built upon:

GOD'S TRUTH

applied through

GOD'S SPIRIT

and lived through

OBEDIENT FAITH.

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XLII. CLOSING CALL TO THE CHURCH

Ask the congregation:

WHAT TRUTH HAVE I HEARD BUT NOT OBEYED?

WHERE IS THE HOLY SPIRIT CONVICTING ME?

WHAT AM I STILL DEFENDING THAT GOD IS ASKING ME TO SURRENDER?

WHAT SPECIFIC ACT OF OBEDIENCE SHOULD FOLLOW THIS STUDY?

Then pray:

“Father, sanctify us by Your truth. Let Your Word expose what is false, renew our minds, correct our desires, and direct our steps. Holy Spirit, give us power to obey what You reveal. Form the character of Jesus Christ in us, not merely in what we say, but in how we think, speak, love, forgive, serve, and live. In Jesus' name, Amen.”

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BRIDGE TO WEEK 4

Week 1:

THE PROBLEM — SIN

Week 2:

THE CALL — SANCTIFICATION

Week 3:

THE PROCESS — WORD + SPIRIT + OBEDIENCE

Now the final question becomes:

What should a sanctified life actually look like?

That leads directly to:

WEEK 4 — LIVING HOLY IN AN UNHOLY WORLD

Primary Scripture: Colossians 3:1–17

Paul will show us that sanctification moves from theology into everyday life:

SET YOUR MIND.

PUT SIN TO DEATH.

PUT OFF THE OLD.

PUT ON THE NEW.

LET CHRIST RULE.

The evidence of sanctification is not merely knowing more about holiness; it is Christ becoming increasingly visible in the way we live.

The strongest continuation for Week 4 will be to make Colossians 3 very practical by moving through “set your mind,” “put to death,” “put off,” and “put on,” and applying those commands to relationships, sexuality, speech, forgiveness, family life, work, and witness.

Process of Sanctification