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calendar_today June 13, 2026
menu_book 1 Corinthians 15:58

An Unshakable Mission

view_list Unshaken (2026)
person Steve Caldwell

Sermon Synopsis
This sermon explores Hebrews 12 through the theme of “An Unshakable Mission,” contrasting the fear and instability of Sinai with the grace and security of Zion. In a world marked by disasters, uncertainty, and personal trials, believers are called to anchor their lives in Christ and the unshakable kingdom He has established. The message challenges Christians to lay aside encumbrances, deal seriously with sin, run the race with endurance, fix their eyes on Jesus, and strengthen fellow believers along the way. Ultimately, because Christ is our hope and His kingdom cannot be shaken, we can live courageously, faithfully, and purposefully until the finish line.

Transcript

Please note: This transcript is provided as close to verbatim record of the sermon.

An Unshakable Mission: Living with Courage in a Shaky World

Hebrews 12

Good morning for the last time.

I have to admit, I’m a little distracted this morning. The United States just scored a goal against Paraguay in the sixth minute, so they’re leading 1–0 in the World Cup. I figured you probably wouldn’t mind if I had a little iPad up here watching the game as I speak. But if I suddenly break out into cheers, it’s not because of the U.S.—it’s because the Bible is so exciting. Please excuse me for that.

I also want to give a shout-out to my wife, who isn’t listening, but today is our 39th anniversary. I know I look a lot younger than that!

I do want to express my appreciation to all of you. The conversations and the fellowship have been wonderful. I’ve really appreciated getting to know many of you. I’m getting older, so my memory isn’t great, but I want to say I’ll never forget you. That’s probably not true—maybe in twenty years—but it has been a wonderful time with you. Thank you for making my first visit to Singapore such a special one.

Introduction: An Unshakable Mission

As you know, the theme of our camp has been “Unshaken.”

We have looked at:

  • An unshakable foundation, building our lives on the solid rock of Jesus Christ.
  • An unshakable identity from Ephesians 1, realizing afresh that nobody has it better than us as followers of Jesus Christ.
  • An unshakable faith, trusting God even when life doesn’t unfold the way we expected.

Today, in our final message, we want to consider an unshakable mission.

Our text is Hebrews 12, and our theme is:

Living with courage in a shaky world.

Can we really be confident that anything is unshakable?

This world is a shaky place—literally and figuratively.

Natural disasters, earthquakes, tsunamis, cyclones, floods, riots, political turmoil, pandemics—everywhere we look, things seem unstable. In the last few years alone, many of us have heard the phrase “the new normal.” Catastrophe has changed our lives, perhaps forever.

So we ask:

  • Is anything stable?
  • Can I trust anything?
  • Is there anything that cannot be shaken?

And yet, in the midst of all of that, we are talking about being unshakable.

We are not the first generation to wrestle with that question.

  1. From Sinai to Zion: Two Kingdoms Compared

The Shaking at Mount Sinai

Turn with me to Exodus 19.

God had rescued His people from over 400 years of slavery in Egypt. He delivered them through Moses, brought them through the Red Sea, and was leading them toward the Promised Land.

In Exodus 19, God establishes a covenant with Israel:

“If you will indeed obey My voice and keep My covenant, then you shall be My own possession among all the peoples.”

The people responded:

“All that the Lord has spoken we will do.”

It sounds like a good arrangement.

All they had to do was obey God.

But then the scene changes.

Thunder.

Lightning.

Smoke.

Fire.

A trumpet blast.

A mountain trembling violently.

And repeated warnings:

“Do not come near the mountain, or you will die.”

The God who had graciously delivered them now appeared in terrifying holiness.

The people were shaken.

And for good reason.

God was revealing His holy standards.

Over the next chapters He would give the Law, beginning with the Ten Commandments and continuing with detailed requirements for life and worship.

But the people failed.

Again and again.

The covenant was broken because they could not keep their side of the agreement.

In reality, that was one purpose of the Law—to show them that they could not save themselves. They needed someone outside themselves.

They needed a Savior.

The Better Covenant

After centuries of failure and frustration, God introduced a new covenant through Jesus Christ.

That is the backdrop of Hebrews.

The people receiving this letter were also living through hardship. Many had lost homes, businesses, relationships, and security because they followed Jesus.

They were tempted to go back.

“Is this worth it?”

“Should we return to Judaism?”

“Should we go back to what we knew?”

The writer of Hebrews answers with one message:

Jesus is better.

Hebrews 12 compares two mountains:

Sinai

  • Fire
  • Darkness
  • Fear
  • Distance
  • Judgment

Zion

  • The heavenly Jerusalem
  • Myriads of angels
  • The assembly of God’s people
  • Access to God
  • Jesus, the mediator of a new covenant

The message is simple:

Don’t go back.

Why would you leave Zion for Sinai?

Why would you leave grace for law?

Why would you leave Christ for self-effort?

  1. An Unshakable Kingdom

Hebrews 12 warns those who refuse Christ.

The writer reminds us that a day is coming when God will shake not only the earth but also the heavens.

Everything that can be shaken will be removed.

Only what is eternal will remain.

The world’s systems will pass away.

The earth itself will be shaken.

And beyond that comes eternal judgment.

That is why the writer pleads:

“See to it that you do not refuse Him who is speaking.”

For anyone here who has not yet trusted Christ, my appeal is simple:

Come to Jesus.

Ask Him to rescue you from the domain of darkness and transfer you into the kingdom of His beloved Son.

The fear of the Lord is the beginning of wisdom.

It is a terrifying thing to fall into the hands of the living God.

But for those who have trusted Christ, there is wonderful hope.

We are secure in Him.

We are not saved because we are good enough.

We are saved because He bore our sins in His body on the cross.

Everything else may shake.

But God’s promises never will.

An Anchor for the Soul

Hebrews 6 describes our hope as:

“An anchor of the soul, both sure and steadfast.”

We live in turbulent times.

Life is hard.

But we have hope.

We have an anchor.

We have God’s promise of an eternal kingdom that cannot be shaken.

That does not mean life will be easy.

It won’t.

But we can hold fast to Jesus.

We can come boldly to the throne of grace.

We can trust what we cannot yet see.

III. Practical Lessons for Living Courageously

The first half of Hebrews 12 gives us practical instruction for living faithfully in a shaky world.

  1. Lay Aside Every Encumbrance

The writer says:

“Lay aside every encumbrance and the sin which so easily entangles us.”

An encumbrance is something that weighs us down.

I remember studying this passage shortly after becoming a Christian. The Bible study leader challenged a college athlete to a race.

Before the race began, he handed him three suitcases.

Then two backpacks.

Then a large moving box.

That incredible athlete never had a chance.

That is the picture here.

Many things weigh us down:

  • Material possessions
  • Family priorities in the wrong place
  • Love of comfort
  • Status and success
  • Appearances
  • Relationships elevated above Christ

These things may not be sinful in themselves.

But they can become obstacles.

Anything that hinders our ability to run for the Lord should be laid aside.

  1. Deal with Sin

The writer also speaks of:

“The sin which so easily entangles us.”

Sin is not merely weight.

It is a trap.

It wraps around us like barbed wire.

It may seem harmless at first.

It may seem manageable.

But eventually it entangles us.

We must identify it.

Confess it.

Put it away.

And run free.

  1. Run with Endurance

The Christian life is not a sprint.

It is not even a marathon.

It is a lifelong race.

Some of us start well but fade.

We get tired.

Life is difficult.

Our faith gets shaken.

But Hebrews says:

“Run with endurance the race set before you.”

As I look around the room, some of you are in the final third of life.

Are you still running?

Or have you decided it is time to coast?

There are not many old disciples.

Many start well.

Few finish well.

The call of Hebrews is clear:

Keep running.

  1. Fix Your Eyes on Jesus

How do we endure?

The answer is simple:

“Fixing our eyes on Jesus.”

There are countless distractions in this world.

Satan cannot take away our salvation.

But he certainly wants to distract us.

He wants us discouraged.

He wants us looking at ourselves rather than Christ.

So we keep looking ahead.

We keep our eyes fixed on Jesus.

And when we do, we remember not only where we are going, but Who we are going to.

The Christian life is not merely running toward a destination.

It is running toward a Person.

And the closer we get, the more beautiful He becomes.

  1. Accept God’s Discipline

The Lord disciplines those He loves.

Discipline is training.

Sometimes it feels painful.

Sometimes it feels unfair.

But it is always for our good.

When I played soccer, my father was my coach. Whenever I was talking too much or fooling around, he would make me run extra laps.

At the time, it felt like punishment.

Years later, I realized it made me a better athlete.

God disciplines us because He loves us.

His goal is holiness.

His goal is Christlikeness.

His goal is the peaceful fruit of righteousness.

So when discipline comes, receive it with gratitude.

  1. Strengthening One Another

The final section of Hebrews 12 gives practical instructions for finishing well.

Strengthen the Weak

If you are running strong, look back.

Who is struggling?

Who is weary?

Who is discouraged?

When I tried out for a college soccer team, we had to complete the Cooper Run—two miles in twelve minutes.

I was not one of the fast runners.

As I came around the final turn, several teammates who had already finished came back and ran alongside me.

“Come on!”

“You can do it!”

I finished in 11 minutes and 53 seconds.

Seven seconds to spare.

Without their encouragement, I would not have made it.

That is what we are called to do for one another.

Strengthen weak hands.

Encourage weary runners.

Help people finish.

Pursue Peace

Hebrews says:

“Pursue peace with all men.”

Conflict is often ignored.

We push it under the carpet.

We avoid people.

We pretend nothing is wrong.

But Hebrews says:

Pursue peace.

Seek it.

Chase after it.

Work toward reconciliation.

Bitterness is dangerous.

I have seen churches nearly destroyed because bitterness was allowed to grow.

It starts small.

Then roots begin to spread.

Before long, division follows.

If bitterness is growing in your heart toward someone:

  • Seek peace.
  • Pursue reconciliation.
  • Ask how God can be glorified in the situation.

Conflict is not merely something to fear.

It can become an opportunity to glorify God through humility, forgiveness, and restoration.

Deal with Sin in the Community

The writer also reminds us to deal seriously with sin.

Sometimes we need to say difficult things.

Sometimes we need loving confrontation.

Sometimes we need to challenge one another to keep following Christ faithfully.

That is part of running the race together.

Conclusion: Keep Running

Regardless of how uncertain this world may seem:

  • We have an unshakable kingdom.
  • We have an unshakable God.
  • We have an unshakable hope.

“Therefore, my beloved brethren, be steadfast, immovable, always abounding in the work of the Lord, knowing that your labor is not in vain.”

Hebrews 11 reminds us of the great cloud of witnesses.

Imagine David.

Samuel.

Rahab.

Ruth.

Samson.

All the heroes of faith.

They are cheering us on:

“Keep going.”

“Don’t give up.”

“Run the race.”

“Look to Jesus.”

And that is exactly what we must do.

Don’t focus on the disasters around you.

Don’t look to the side.

Look straight ahead.

Look at Jesus.

He is worth looking at.

He is beautiful.

He is worthy.

And as we keep our eyes fixed on Him, we will find strength to continue the mission He has given us.

Storms will come.

Challenges will come.

But our foundation is secure.

Our identity is secure.

Our faith is secure.

And our mission remains.

So get alone with the Lord and ask:

“Lord, what is Your mission for me?”

“Is there something You want me to pursue?”

“Is there something You want me to stop pursuing?”

“How can I live a life that pleases You?”

We have a mission.

God will not force us to accept it.

We must choose to embrace it.

And as we follow Jesus, we discover the wonderful truth:

In the end, we win.

For God so loved the World, that he gave his one and only Son, that whoever believes in Him shall not perish but have eternal life. John 3:16     
For God so loved the World, that he gave his one and only Son, that whoever believes in Him shall not perish but have eternal life. John 3:16     
For God so loved the World, that he gave his one and only Son, that whoever believes in Him shall not perish but have eternal life. John 3:16     
For God so loved the World, that he gave his one and only Son, that whoever believes in Him shall not perish but have eternal life. John 3:16