The 30th Anniversary Revised and Expanded Edition of “Go to the Nations” is not simply an introduction to missionary studies.
This book is a classic in mission theology, beginning with a deep understanding of who God is and then biblically, theologically, and practically explaining why His people must go "toward the nations."
In particular, the key sentence, “Missions exist because worship doesn't,” encapsulates the message that runs through the entire book.
The 30th Anniversary Revised and Expanded Edition is not a simple republication; it is a declaration that once again calls for "mission for worship" in the modern world, digital culture, and the post-COVID era.

This book deeply and biblically unravels the relationship between worship and missions, redefining the purpose, motivation, and direction of missions, centering on the truth that God delights in being glorified among the nations.
In this book, John Piper asserts that missions is not the ultimate goal of the church, but worship.
Missions are a temporary ministry to establish worship where there is no worship that glorifies God, and only when true worship is restored will missions fulfill their mission.
This book, in particular, makes us look at missions from a God-centered perspective rather than a people-centered one.
The reason we preach the gospel to the nations is not simply to save people, but to make all nations cherish God above all else and worship Him alone.
In other words, missions do not begin from human need, but from a desire for God's glory.

This revised and expanded edition, published to commemorate the 30th anniversary, has been further refined for a new generation.
Each chapter is rich in theological arguments and biblical texts, and it still provides a vivid challenge and comfort to missionary churches and believers today.
The declaration that worship is the fuel and goal of missions is presented not as mere theory but with abundant examples and explanations so that it can be applied in actual ministry and life.
Above all, this book makes us realize that all Christians are worshippers and missionaries.
The proclamation that not only those who have received a special calling, but also anyone who truly glorifies God must become a witness who spreads God's name among the nations through their lives resonates deeply in the hearts of readers.

“Go to the Nations” is not simply a book on missionary theory.
This book helps readers fully acknowledge God's Godhood and understand that worship and missions are one inseparable, holy stream.
And it powerfully leads us to respond to that calling.
This message, still alive after 30 years, remains relevant and even more urgent for today's church and readers.
Now, again, through this book, we will ponder how we can establish a worship worthy of God in the midst of this earth.
Thirty years ago, a book brought the church back to its focus on worship and restored the motivation for missionary work to God's being God.
And today, 30 years later, the book asks again:
"Where there is no worship, are you establishing worship?" The 30th-anniversary revised and expanded edition of "Go to the Nations" will be a biblical declaration that will ignite the flame of worship in a new generation and lead a missionary life for those who treasure God above all else.

Missions is not the ultimate goal of the church.
Worship should be the ultimate goal of the church.
Missions are needed only because there is no worship there.
The reason the ultimate goal is worship, not missions, is because the ultimate being is God, not man.
When this generation ends and the redeemed multitudes bow their heads before the throne of God, there will be no more missions left.
Missions are only a temporary necessity.
But does worship last forever?
--- From “Chapter 1: Missions, Why Are They Necessary?”

Prayer is essentially a wartime radio that the church uses to advance daily against the powers of darkness and unbelief.
If we think of prayer as something like a home intercom that we use to contact the upstairs neighbors for the convenience of our homes, it is only natural that prayer does not work properly.
But God has given us prayer as a radio for demonstration.
As the kingdom of Christ expands its front lines in the world, we are to use it to request from the operational command everything we need.
--- From Chapter 2, Prayer, a Strategic Weapon for Missions

How is the value of a hidden treasure determined? By what is sacrificed to obtain it.
If we were to sell everything we had to obtain that treasure, we would be valuing it at its highest.
On the other hand, if we don't do that, we are valuing what we already have more.
[…] The value of the treasure called God is also determined by the size of the sacrifice we make and the size of the joy we enjoy.
--- From “Chapter 3: Why Hardships Accompany Missionary Work”

Christ's atoning work is the only way for anyone to be justified before God.
The problem of sin is a serious matter that binds all of humanity and separates people from God.
The solution to this universal problem is the atoning death of the Son of God, offered once for all on the cross.
This is the foundation of missionary work.
This is the decisive reason why we do missionary work.
--- From “Chapter 4: Is Christ a Necessary Requirement for Salvation”

God's great goal throughout history has been to exalt and reveal the glory of his name so that his people from all nations may enjoy it.
--- From “Chapter 5 God Becoming God Among the Nations”

God is pursuing a global purpose of gathering people from every nation, tribe, people, and language to joyfully worship Him with incredible passion.
God desires that his name be highly exalted among the nations.
--- From “Chapter 6: God’s Passion for Being God and Compassion for Souls”

God is pursuing a global purpose of gathering people from every nation, tribe, people, and language to joyfully worship Him with incredible passion.
God desires that his name be highly exalted among the nations.
--- From “Chapter 7: Inner Simplicity and Outer Freedom of Worship”

Whether the Christian missionary work progresses quickly or pauses for a moment is in the hands of Christ.
And all of this is under the unwavering promise:
“And this gospel of the kingdom will be preached in the whole world as a testimony to all nations, and then the end will come” (Matthew 24:14).
Christ is the absolute sovereign of the global movement and transformation of the Christian church.

--- From “Chapter 8: The Movement of the Gospel, Not the Change of the Gospel”