WHEN YES CHANGES EVERYTHING

Life Application: Saying yes to God transforms rebellion into redemption, direction into destiny, and faith into fruitfulness. One yes from your heart can change your world—and someone else’s.

Texts: Acts 9:1–20; Acts 16:6–10

Introduction:  Imagine being told that the dream God has put in your heart is too big. You have no impressive education. You have little money. You have no powerful connections. You make your living working with your hands. And when you begin talking about what you believe God wants done, some people think your idea is unrealistic.

That was the world of William Carey.

Carey was born in England in 1761 and eventually became a shoemaker and Baptist pastor. He was largely self-educated, but something began burning in his heart: people around the world needed to hear the gospel of Jesus Christ.

While working as a shoemaker, Carey kept a map of the world near his workbench. He gathered information about nations and peoples who had little access to the gospel. The more he learned, the more convinced he became that Christ's command to take the gospel to the nations was not merely something Christians should admire—it was something Christians should obey.¹

In 1792, Carey published An Enquiry into the Obligations of Christians to Use Means for the Conversion of the Heathens. That same year, he preached the sermon for which he would become famous, challenging Christians to:

**“Expect great things! Attempt great things!”**²

Carey's burden helped lead to the formation of the Baptist Missionary Society in October 1792.

But Carey did more than talk about missions.

He said yes.

In 1793, William Carey left England with his family and sailed for India.³

And almost nothing went according to plan.

Money became scarce. His family suffered terribly. His young son Peter died. His wife struggled severely. Carey battled sickness, loneliness, financial problems, opposition, and discouragement. And perhaps most difficult of all—

**for seven years, Carey did not see a single Indian convert.**⁴

Think about that.

Seven years of preaching.

Seven years of translating.

Seven years of praying.

Seven years of wondering whether anything was happening.

There must have been days when Carey wondered, Did I hear God correctly?

But then came December 1800.

After seven long years, Carey baptized Krishna Pal, his first Indian convert.⁵

And the story did not end there.

Carey remained in India for more than forty years. He helped translate the entire Bible into six languages and portions of Scripture into many others. His work helped establish schools, train Indian Christians, expand missionary efforts, and inspire a missionary movement that reached far beyond anything that shoemaker in England could have imagined.⁶

All because somewhere along the way, William Carey said yes.

And that brings us to Acts 9.

Saul is traveling toward Damascus with his own plans when Jesus interrupts his journey.

God essentially says, “I have another direction for your life.”

Saul says yes—and the persecutor becomes a preacher.

Then in Acts 16, Paul has plans again. He wants to preach in Asia, but the Holy Spirit closes the door. Paul tries another direction, and again God says no.

Then, during the night, Paul sees a man from Macedonia pleading:

“Come over into Macedonia, and help us.” — Acts 16:9

And Paul says yes.

That yes carries the gospel into Macedonia. Lydia believes. A jailer believes. Churches are planted. Lives are changed.

Here is what I want us to see today:

Sometimes the greatest turning points in our lives begin with one simple word:

YES.

You may not understand where God's yes will take you.

You may not know what it will cost you.

You may not see immediate results.

And you may even encounter some closed doors along the way.

But when God calls, your yes can change everything.

Some decisions define a day, while others define a destiny. The impact of a single choice can reverberate through time, altering the course of an individual’s life or even the history of nations.

When Saul of Tarsus said “yes” to the Lord Jesus on the Damascus Road, everything changed—his direction, his desires, and his ultimate destiny.

In Acts 9, Saul left Jerusalem armed with authority from men, but he encountered the authority of heaven. He was on a mission to destroy the church, yet God was on a mission to deliver him. In one moment of surrender—one word of obedience—his life was forever transformed.

“And he trembling and astonished said, Lord, what wilt thou have me to do?” (Acts 9:6)

That’s the moment when everything shifted. One yes to God can change everything. Saying yes to God is never merely about what you give up; it’s fundamentally about what you gain. It’s the gateway to purpose, power, and peace.

Let’s explore three transforming truths that occur when yes changes everything.

I. Yes Changes Your Direction — From Rebellion to Redemption

“And he fell to the earth, and heard a voice saying unto him, Saul, Saul, why persecutest thou me?” – Acts 9:4

Before his conversion, Saul was religious but lost, zealous but wrong, educated but blind. He was traveling down the wrong path with tremendous energy but without purpose.

Saul wasn’t searching for Jesus—Jesus was searching for Saul. He didn’t find God; instead, God found him. Salvation doesn’t begin with man’s pursuit of God but with God’s relentless pursuit of man.

The light shined, the voice spoke, and the rebel fell. When God calls, He does so with conviction. Every sinner must have a collision with the Savior before they can experience true conversion.

Illustration: The shepherd doesn’t wait for the sheep to come home—he leaves the ninety-nine to find the one. Saul was that one. Grace chased him down the Damascus Road and completely rewrote his route.

A. A Confrontation with the Savior

Saul said, “Lord, what wilt thou have me to do?”

In that single sentence, the persecutor became a preacher, the blasphemer became a believer. A yes to Jesus signifies that you stop directing your life and start depending on His leadership.

It’s not about adding Jesus to your existing plan; it’s about surrendering your entire plan to Jesus.

Truth: When you say yes to the Master, He transforms your mess into a ministry.

C. A Commission of Service

God told Ananias, “He is a chosen vessel unto me.” (Acts 9:15) When Saul said yes, God provided him with a new mission—to carry the gospel to the Gentiles.

You cannot say yes to salvation without simultaneously saying yes to service. A changed heart always leads to a called life.

Application: Your yes to God will always redirect your steps. You may not end up where you initially planned, but you will always arrive at where you are purposed to be.

II. Yes Changes Your Devotion — From Self to the Savior

“And straightway he preached Christ in the synagogues, that he is the Son of God.” – Acts 9:20

Once Saul’s eyes were opened, his heart was captured. The man who once harbored hatred for Christ could not stop talking about Him and sharing His message.

A. Yes Produces Transformation

Saul didn’t require a new education; he needed a new encounter. When he said yes, his values, vision, and voice all underwent significant changes.

Before, he fought against the gospel; now, he preached it.

Before, he loved the law; now, he loved the Lord.

Before, he sought fame; now, he sought faithfulness.

Truth: When you meet Jesus, you cannot remain who you once were—His grace doesn’t merely pardon; it transforms.

B. Yes Produces Dedication

The word “straightway” means immediately. Saul didn’t wait for a title or a platform; he began proclaiming the truth right away.

When God transforms your life, you don’t require an announcement—your obedience itself announces it.

True salvation naturally produces a desire for service. He didn’t look back at what he lost; he pressed forward to what he had gained.

Paul later wrote, “This one thing I do, forgetting those things which are behind, and reaching forth unto those things which are before.” (Philippians 3:13)

Illustration: A soldier doesn’t wait for comfort before entering the battle—he marches because he’s called. Paul marched with the same devotion. His yes became his mission statement.

C. Yes Produces Persecution

Not everyone will celebrate your yes. Saul’s former allies became his enemies, and those who once supported him did not trust his conversion.

When you say yes to God, the devil will say no. However, even in the midst of attacks, God advances His purpose.

Truth: Your yes will always be tested. Every significant calling comes with a great conflict. But if God called you to it, He will carry you through it.

Application: Do not fear the resistance; instead, focus on the Redeemer. Your yes may cost you comfort, but it will draw you closer to Christ.

III. Yes Changes Your Destination — From Local Impact to Global Influence

“And a vision appeared to Paul in the night; There stood a man of Macedonia, and prayed him, saying, Come over into Macedonia, and help us.” – Acts 16:9

The same Paul who met Christ in Acts 9 is now faithfully following Christ in Acts 16. His yes didn’t merely start a journey—it shaped an entire generation.

A. Yes Opens New Doors

Paul had a plan to go east, but God redirected him west. The Holy Spirit “forbade” him from entering Asia and instead provided him with a vision to go to Macedonia.

Sometimes, God closes one door because He’s opening a much larger one. Don’t mistake divine detours for divine denials.

Illustration: When Hudson Taylor wanted to go to China, many said it was impossible. However, his yes to God opened doors for missions that continue to exist today. Obedience always builds opportunities. [8]

B. Yes Enlarges Your Reach

Paul’s obedience in Acts 16 led to the gospel reaching Europe. That single yes changed the entire trajectory of Christianity.

When you obey, you never know how far your yes will go.

One yes from Abraham birthed a nation.

One yes from Moses freed a people.

One yes from Mary brought the Savior.

One yes from Paul carried the gospel around the world.

God can take your local obedience and transform it into a global impact.

Truth: Your yes may begin small, but when placed in the hands of a big God, it ripples into eternity.

C. Yes Establishes God’s Kingdom

The Macedonian vision was not solely about geography—it was fundamentally about glory. God used Paul’s yes to plant churches in Philippi, Thessalonica, and Corinth.

Every church, every convert, and every letter Paul wrote can be traced back to that pivotal moment when he said yes on the Damascus Road and continued to say yes for the remainder of his life.

Your consistent yes to God expands His Kingdom one soul at a time.

IV. Yes Changes Your Disposition — From Fear to Faith

“Be not afraid, but speak, and hold not thy peace.” – Acts 18:9

God continued to speak to Paul because obedience can become weary. Saying yes once is commendable; however, saying yes continually is what makes it godly.

A. Yes Replaces Fear with Faith

Every time Paul faced prison or persecution, he recalled the voice that called him on the road. Faith does not eliminate fear; rather, it overcomes it. When your yes is anchored in His promise, your courage will outlast your crisis.

Truth: The safest place in the world is in the center of God’s will.

B. Yes Replaces Worry with Worship

Even while in prison, Paul and Silas sang praises at midnight (Acts 16:25). Obedience turns your problems into platforms for praise.

You can worship even in the dark when you know Who is in control. When you say yes to God, you can sing in situations that would typically silence you.

Illustration: John Bunyan said yes to preaching, even while imprisoned for 12 years. Out of that commitment came The Pilgrim’s Progress, a book that has led millions closer to Christ. [9]

Your yes today might produce a song for someone else’s midnight tomorrow.

C. Yes Replaces Doubt with Destiny

Every time Paul faced hardship, he discovered purpose within it. Near the end of his life, he could confidently say, “I have fought a good fight, I have finished my course, I have kept the faith.” (2 Timothy 4:7)

The man who once said yes on a dusty road finished with a crown in glory.

Application: A faithful yes today builds a fruitful tomorrow. Continue saying yes until your faith becomes sight.

Illustration:  I want to take you back to that shoemaker one more time.

Picture William Carey before India.

He is sitting at his workbench in England.

Leather in his hands.

Shoes waiting to be repaired.

A map of the world hanging nearby.

He could see the map.

But he could not see the future.

He could not see Krishna Pal standing in the waters of baptism seven years after Carey arrived in India.

He could not see Bibles being translated into languages he had not yet learned.

He could not see the schools that would be established.

He could not see Serampore College.

He could not see generations of missionaries who would follow his example.

He certainly could not see that more than two centuries later Christians would still tell the story of a shoemaker who believed ordinary believers should take the gospel to the nations.

Carey could not see what his yes would become.

He only knew God had placed a burden upon his heart.

That is often how God works.

Saul could not see what was waiting beyond Damascus.

When he lay blinded on that road, he could not see missionary journeys, churches being planted, epistles being written, or generations reading Romans, Corinthians, Galatians, Ephesians, Philippians, and the other letters that would flow from his ministry.

He could not see all that his yes would become.

And when Paul saw the Macedonian vision in Acts 16, he could not see Lydia by the riverside.

He could not see the demon-possessed girl being delivered.

He could not see the prison doors opening.

He could not hear the Philippian jailer asking:

“Sirs, what must I do to be saved?” — Acts 16:30

Paul could not see everything on the other side of Macedonia.

He just said yes.

And perhaps that is where someone is today.

God has been dealing with you about something.

Maybe it is salvation.

Maybe it is surrender.

Maybe it is ministry.

Maybe it is witnessing to someone.

Maybe God has closed a door you desperately wanted open, and you cannot understand why.

Acts 16 reminds us that sometimes God's “no” is simply directing us toward the place where He needs our “yes.”

William Carey once described one of the qualities that characterized his life:

**“I can plod. I can persevere in any definite pursuit.”**⁷

Carey kept going because the results did not determine the calling.

God did.

So here is the question with which I want to leave you:

What is waiting on the other side of your yes?

Saul said yes—and a persecutor became an apostle.

Paul said yes—and the gospel crossed into Macedonia.

Carey said yes—and a shoemaker helped ignite a missionary movement.

You cannot see everything God may do with your obedience.

You cannot see every person who may be affected.

You cannot see every door God may open.

You cannot see every life that may be changed.

But God can.

You do not have to know the entire journey.

You only have to answer the One who is calling.

Because when God calls, one obedient yes can change everything.

Conclusion: When Yes Changes Everything

From Damascus to Macedonia, from blindness to boldness, and from enemy to evangelist—Paul’s story exemplifies that saying yes to God will change everything.

Every yes sets a chain reaction in motion:

Yes to salvation brings transformation.

Yes to surrender brings direction.

Yes to service brings multiplication.

When you say yes, God does the rest.

Closing Illustration: In 1873, a young woman named Fanny Crosby lost her sight, yet she said yes to God’s calling to write hymns. She penned over 8,000 songs, including “Blessed Assurance” and “To God Be the Glory.” Her yes provided the church with a rich songbook of praise.

A yes to God will outlive you, outshine your failures, and outlast your fears.

Closing Challenge:

What if your next yes is the one that changes everything? What if your obedience today becomes someone else’s breakthrough tomorrow? Don’t delay—decide. Don’t resist—respond. Don’t fear—follow.

Because when you say yes, heaven writes a new chapter in your life.

“And he trembling and astonished said, Lord, what wilt thou have me to do?”

That’s the question that still changes everything.

Life Application:

Saying yes to God transforms rebellion into redemption, direction into destiny, and faith into fruitfulness. One yes from your heart can change your world—and someone else’s.

Illustration References:

[1] Brian Stanley, “Winning the World: Carey and the Modern Missionary Movement,” Christian History, no. 9 (1984), Christian History Institute. (Christian History Institute)

[2] Mark Galli, “William Carey: The Christian History Timeline,” Christian History, no. 36 (1992), Christian History Institute. Carey preached his famous missionary sermon on May 31, 1792. Christian History notes that the familiar expanded wording, “Expect great things from God; attempt great things for God,” reflects the sermon’s meaning, while Carey's actual formulation was “Expect great things! Attempt great things!” (Christian History Institute)

[3] Galli, “William Carey: The Christian History Timeline.” Carey was commissioned for Bengal in January 1793, sailed from England in June, and arrived in India later that year. (Christian History Institute)

[4] Mark Galli, “The Man Who Wouldn’t Give Up,” Christian History, no. 36 (1992), Christian History Institute. Galli describes Carey's first six years as producing no convert and records the breakthrough that followed after seven years of labor. (Christian History Institute)

[5] Stanley, “Winning the World.” Krishna Pal was baptized in December 1800 after Carey had labored approximately seven years in India. (Christian History Institute)

[6] “William Carey: Did You Know?,” Christian History, no. 36 (1992), Christian History Institute. Carey translated the complete Bible into six languages and portions into numerous others and remained in India for nearly forty-one years. (Christian History Institute)

[7] Galli, “The Man Who Wouldn’t Give Up.” Carey's statement about his ability to “plod” and persevere became an apt description of the persistence that characterized his missionary life. (Christian History Institute)

[8] Geraldine Guinness Taylor, The Life of J. Hudson Taylor, Founder of the China Inland Mission (Cincinnati: Revivalist Office, 1915).

[9] John Bunyan, Grace Abounding to the Chief of Sinners, ed. George Offor (London: W. G. Blackie and Son, 1862), sec. 318; John Bunyan, The Pilgrim’s Progress (London: Nath. Ponder, 1678).