Greg Gilbert’s book provides a clear, concise explanation of the gospel, focusing on its core elements: God, humanity, Christ, and response, offering a foundational guide for understanding the gospel message.
What Is the Gospel?
Greg Gilbert defines the gospel as the good news about Jesus Christ, emphasizing its divine origin and transformative power. The gospel, meaning “good news,” is not merely a positive message but a specific announcement about God’s plan to redeem humanity. Gilbert explains that the gospel is rooted in God’s sovereignty, humanity’s sinful state, and Christ’s redemptive work. It demands a response, calling individuals to faith and repentance. Gilbert argues that the gospel is not a vague concept but a clear, biblical message centered on God’s grace and humanity’s need for salvation. His book clarifies this message, ensuring it is understood and proclaimed accurately.
The Significance of the Gospel in Christianity
The gospel is the foundation of Christianity, serving as the central message of salvation and redemption. It addresses humanity’s separation from God due to sin, offering reconciliation through Christ’s sacrifice. Gilbert emphasizes that the gospel is not merely a theological concept but a transformative truth that restores relationships and brings eternal life. Its significance lies in its power to forgive sins, grant spiritual rebirth, and unite believers under one faith. The gospel also shapes Christian identity, guiding ethical living and worship. Gilbert underscores its universal relevance, calling all people to respond to God’s grace. Understanding the gospel’s significance is essential for living a life rooted in faith and purpose.
The Need for Clarity in Understanding the Gospel

Greg Gilbert stresses the importance of clarity in understanding the gospel, as confusion often arises from misinterpretations or oversimplifications. He argues that the gospel is frequently obscured by vague or misleading definitions, leading to a diluted message. Gilbert contends that without a clear grasp of the gospel, its transformative power is diminished, and its central truths become lost. He emphasizes the need to return to Scripture to define the gospel accurately, ensuring it remains faithful to its biblical roots. By providing a structured framework—focusing on God, humanity, Christ, and response—Gilbert helps readers avoid misconceptions and embrace the gospel’s life-changing implications with confidence and precision.

Key Principles of the Gospel
Greg Gilbert outlines the gospel’s core principles: God’s sovereignty, humanity’s sinfulness, Christ’s redemptive work, and the necessary response of faith and repentance to this divine message.
God’s Character and Sovereignty
Gilbert emphasizes that the gospel begins with God, highlighting His holy and sovereign character. As the Creator and Ruler of the universe, God’s perfect justice and love form the foundation of the gospel message. Gilbert underscores that God’s sovereignty is not arbitrary but rooted in His divine nature, which demands both worship and obedience. This understanding of God’s character sets the stage for humanity’s rebellion and the necessity of redemption. By focusing on God’s sovereignty, Gilbert ensures that the gospel is centered on His initiative and grace, rather than human effort or merit. This theological framework is essential for grasping the gospel’s depth and significance.
Humanity’s Sinful State and Separation from God
Gilbert explains that humanity’s sinful state is rooted in rebellion against God, leading to spiritual separation. This rebellion, evident in Adam’s disobedience, results in all people being born with a sinful nature. Gilbert emphasizes that sin is not merely external actions but a corruption of the heart, causing humanity to fall short of God’s glory. This separation from God leads to spiritual death and eternal judgment. Gilbert underscores that this sinful state is universal, affecting every person, and cannot be remedied through human effort. Understanding humanity’s sinful condition is crucial for grasping the necessity of the gospel and God’s redemptive work through Christ. This truth humbles humanity, revealing the depth of their need for salvation.

Christ’s Work of Redemption
Christ’s work of redemption is the heart of the gospel, as Gilbert explains. Through His life, death, and resurrection, Jesus addresses humanity’s sinful state and separation from God. Gilbert emphasizes that Christ’s obedience to God’s law and His sacrificial death on the cross satisfy the divine justice, paying the penalty for humanity’s sin. This substitutionary atonement demonstrates God’s love and holiness. The resurrection of Christ triumphs over sin and death, offering believers new life and reconciliation with God. Gilbert highlights that Christ’s work is the only means by which humanity can be redeemed, restoring the broken relationship between God and His people. This redemption is a gift of grace, received through faith, and it transforms lives eternally.
The Required Response to the Gospel
The gospel demands a response, as Gilbert underscores. It is not merely information to be acknowledged but a message that requires action. The necessary response involves repentance and faith. Repentance means turning away from sin and self-reliance, while faith entails trusting in Christ’s work of redemption. Gilbert emphasizes that this response is not a one-time decision but a lifelong commitment to following Jesus. The gospel calls individuals to surrender their lives to God, embracing His lordship and living in obedience to His will. This response is rooted in the transformative power of the gospel, leading to a changed life and a new relationship with God. Gilbert stresses that this response is essential for salvation and eternal life.

Author Background
Greg Gilbert holds an MDiv from The Southern Baptist Theological Seminary and serves as senior pastor at Third Avenue Baptist Church, known for his influential Christian writings.
Greg Gilbert’s Biography and Ministry
Greg Gilbert holds an MDiv from The Southern Baptist Theological Seminary and serves as the senior pastor at Third Avenue Baptist Church in Louisville, Kentucky. He is a prominent author, known for works like What Is the Gospel?, James: A 12-Week Study, and Who Is Jesus?. Gilbert co-authored What Is the Mission of the Church? with Kevin DeYoung, addressing key theological questions. His ministry focuses on clear, biblically grounded teaching, aiming to equip believers with a deep understanding of Scripture. Gilbert’s writings and sermons emphasize the centrality of the gospel, making him a respected voice in contemporary evangelicalism. His work is widely praised for its clarity and theological depth.
Gilbert’s Other Notable Works
Beyond What Is the Gospel?, Greg Gilbert has authored several influential books. James: A 12-Week Study provides an in-depth examination of the Book of James, offering practical insights for Christian living. Who Is Jesus? explores the identity and significance of Christ, addressing foundational questions about His life and teachings. Gilbert also co-authored What Is the Mission of the Church? with Kevin DeYoung, challenging believers to rethink their understanding of the church’s purpose. These works, along with his gospel-centered approach, have solidified Gilbert’s reputation as a thoughtful and impactful theological writer, making his books essential resources for both individual and group study.

Book Structure and Content
Gilbert’s book is structured around four main subjects: God, humanity, Christ, and response, providing a clear framework for understanding the gospel message and its biblical foundations.
The Four Main Subjects of the Gospel
Gilbert organizes the gospel around four central themes: God, humanity, Christ, and response. He begins with God’s character and sovereignty, emphasizing His holiness and love. Next, he addresses humanity’s sinful state and separation from God, highlighting the need for redemption. The third subject is Christ’s work, focusing on His life, death, and resurrection as the ultimate sacrifice for sin. Finally, Gilbert explores the required response, calling individuals to repentance and faith in Jesus. This structure provides a clear, biblical framework for understanding the gospel, ensuring clarity and depth in its presentation.
Biblical Foundations of the Gospel Message
Gilbert roots the gospel message in Scripture, drawing heavily from key biblical texts. He emphasizes the importance of understanding the gospel through the lens of God’s Word, particularly focusing on passages like Romans and Isaiah. Gilbert systematically presents the gospel as a cohesive narrative, beginning with God’s holiness and humanity’s sinfulness, followed by Christ’s redemptive work and the call to repentance. By grounding his explanation in biblical theology, Gilbert ensures that the gospel is not merely a human construct but a divine revelation. This approach provides readers with a clear, authoritative understanding of the gospel, reinforcing its timeless truth and universal relevance.

Reception and Reviews
Gilbert’s work has received widespread acclaim for its clarity and theological depth. Prominent theologians like D.A. Carson endorse it, praising its faithful, biblical presentation of the gospel.
Endorsements from Prominent Theologians

Prominent theologians and church leaders have praised Gilbert’s work for its theological depth and clarity. D.A. Carson, a renowned evangelical scholar, commends Gilbert as one of the brightest and most faithful voices in contemporary Christianity. Carson highlights Gilbert’s ability to provide a penetrating, faithful, and fully biblical understanding of the gospel. Other theologians and pastors have echoed this sentiment, noting how Gilbert’s work sharpens the reader’s understanding of the gospel and equips them to distinguish it from counterfeit versions. The endorsements underscore the book’s significance in helping readers grasp the core of the Christian message and its relevance for modern ministry and personal faith.
Impact on Readers and Church Leaders
Greg Gilbert’s book has profoundly impacted both individual readers and church leaders by providing a clear, biblical understanding of the gospel. Many readers have reported a deeper grasp of the gospel’s core message, which has strengthened their personal faith and evangelistic efforts. Church leaders appreciate the book’s ability to equip them with a concise, theologically sound resource for teaching and discipleship. The clarity and accessibility of Gilbert’s writing have made it a valuable tool for pastors seeking to train their congregations. Additionally, the book’s focus on distinguishing the true gospel from counterfeit versions has been particularly helpful in addressing modern theological confusion and fostering gospel-centered ministries.
Addressing Counterfeit Gospels
Greg Gilbert’s book is particularly effective in addressing counterfeit gospels by clearly distinguishing the true gospel from false interpretations. He emphasizes that the gospel is not merely a generic “good news” but a specific message about Jesus Christ’s life, death, and resurrection. Gilbert argues that many modern distortions of the gospel, such as overemphasis on personal prosperity or moral improvement, undermine its biblical foundation. By systematically exploring the gospel’s core elements—God’s sovereignty, humanity’s sin, Christ’s redemption, and the required response—Gilbert provides a clear guide for recognizing and rejecting counterfeit gospels. This clarity has helped readers and church leaders remain grounded in the true gospel, ensuring its integrity in their ministries and personal lives.

Application and Practice
The gospel’s application involves personal transformation, guiding church ministries, and remaining culturally relevant, ensuring its message resonates across diverse contexts and generations.
Personal Application of the Gospel
The gospel is not merely intellectual knowledge but a transformative message that reshapes individuals’ lives. Gilbert emphasizes that true understanding leads to heart change, compelling believers to live in light of God’s grace. The gospel calls for repentance and faith, prompting Christians to surrender to Christ’s lordship and embrace their identity in Him. It fosters humility, gratitude, and love, enabling believers to navigate life’s challenges with hope and joy. By applying the gospel personally, individuals grow in holiness, experience freedom from sin’s grip, and find purpose in glorifying God. This personal transformation equips believers to live missionally, sharing the gospel’s life-changing power with others.
Implications for Church Ministry

Greg Gilbert’s work underscores the necessity of gospel clarity in church ministry, emphasizing that pastors and leaders must preach and teach the gospel with precision. The book highlights the importance of ensuring that the gospel is central to all aspects of church life, from sermons to community engagement. Gilbert argues that without a clear understanding of the gospel, churches risk diluting their message and losing their mission. He calls for consistency in gospel presentation, urging leaders to avoid confusion and ensure that every ministry activity reflects the transformative power of the gospel. This clarity empowers churches to equip believers for discipleship and outreach effectively.
Cultural Relevance of the Gospel Message
Greg Gilbert emphasizes that the gospel remains universally relevant across cultures and time, as it addresses fundamental human needs and questions. The book highlights how the gospel’s core message—God’s sovereignty, humanity’s sin, Christ’s redemption, and the required response—transcends cultural boundaries. Gilbert argues that while cultural contexts may vary, the gospel’s essence does not change, making it eternally applicable. He encourages believers to present the gospel in ways that resonate with their specific cultural settings while maintaining its theological integrity. This approach ensures the gospel remains a powerful, transformative force in diverse societies, addressing the deepest spiritual needs of all people.
Greg Gilbert’s work underscores the gospel’s timeless relevance, providing a clear, essential guide for understanding its core truths and their enduring significance in Christian faith and practice.
Greg Gilbert’s What Is the Gospel? clearly defines the gospel as the good news of Jesus Christ, emphasizing its centrality in Christian faith. The book outlines four key subjects: God’s sovereignty, humanity’s sinfulness, Christ’s redemptive work, and the required response of faith and repentance. Gilbert stresses the importance of clarity to avoid confusion and counterfeit gospels. Written in an accessible style, the book is particularly appealing to young adults, providing a foundational understanding of the gospel. It has been endorsed by prominent theologians like D.A. Carson, who praises its biblical fidelity and relevance for fostering gospel-centered Christians. Gilbert’s work remains a vital resource for both personal and ministry contexts.
The Importance of Understanding the Gospel
Understanding the gospel is essential for grasping the core of Christian faith and living a life transformed by its truth. Gilbert emphasizes that clarity about the gospel prevents confusion and counterfeit teachings, ensuring believers remain grounded in biblical truth. The gospel’s message of redemption through Christ addresses humanity’s spiritual need, offering hope and reconciliation with God. It serves as the foundation for personal spiritual growth and unity within the church. Gilbert’s work underscores the gospel’s relevance in shaping discipleship, evangelism, and daily living. By prioritizing a clear understanding of the gospel, believers can deepen their faith, navigate cultural challenges, and effectively share the good news with others.