In every position of power lies the potential for life-giving leadership or destructive corruption. Driven by sinful pride or opportunism, many people abuse their God-given influence, harming the ones they’re called to lead and contributing to an intense angst against authority. The answer to bad authority, however, is not no authority, but good authority—the kind that, according to Scripture, causes those under it to flourish. In this compelling guide from 9Marks, Jonathan Leeman shows that authority, done biblically, is not only good, but is essential to human flourishing.

In the 21st-century West, identity is everything. Never has it been more important, culturally speaking, to know who you are and remain true to yourself. Expressive individualism—the belief that looking inward is the way to find yourself—has become the primary approach to identity formation, and questioning anyone's "self-made self" is often considered a threat or attack. Prompted by his own past crisis of identity, Brian Rosner challenges the status quo by arguing that, while knowing yourself is of some value, it cannot be the sole basis for one's identity.

Psalm 23 is one of the most recognizable passages in the whole Bible. Though relatively short, this poetic depiction of God’s love epitomizes Christ’s goodness and provision as he leads his children. Even lifelong Christians will find fresh encouragement by closely studying these familiar words. David Gibson walks through each verse in Psalm 23, thoroughly examining its 3 depictions of the believer’s union with Christ as sheep and shepherd, traveler and companion, and guest and host.

In John 15, Jesus says, "I have called you friends." But what does it mean to be friends with Jesus? In the early 1650s, theologian John Owen attempted to answer this question through a series of sermons, eventually compiled as Communion with God. The book is full of truths about having fellowship with God, but Owen's work is often a struggle for modern readers/listeners to understand.

C.S. Lewis was used by God in the conversions of countless people, from friends and acquaintances in his own lifetime to modern-day readers of books such as The Chronicles of Narnia and Mere Christianity (the most influential Christian book of the 20th century). As Tim Keller comments, “C.S. Lewis was incredibly skilled at getting Christianity across in a way that’s powerful to thoughtful people." So, if we want help with evangelism, there is much we can learn from the clarity and imagination of this hugely influential Christian writer.

When someone thinks of Jesus, “genius” is not likely the first word that comes to mind. But when studied in detail, Jesus’s teachings and interactions with others combined high levels of knowledge and insight, verbal skill, and simplicity—showing his genius. In The Surprising Genius of Jesus, Peter J. Williams examines the story of the prodigal son in Luke 15 to show the genius, creativity, and wisdom of Jesus’s teachings. He used simple but powerful stories to confront the Pharisees and scribes of the day, drawing on his knowledge of the Jewish Scriptures to teach his audience.

There was something different about the way Jesus communicated with the lost: He didn't force answers upon people, he asked questions. So why don't we? Following Christ's lead, Randy Newman has been using a questioning style of evangelism for decades. In this provocative book, he provides practical insights to help Christians engage others in meaningful spiritual conversations. He challenges us to examine how we think about people, their questions, and our crucial message.

Elisabeth Elliot was a young missionary in Ecuador when members of a violent Amazonian tribe savagely speared her husband, Jim, and his four colleagues. Incredibly, prayerfully, Elisabeth took her toddler daughter, snakebite kit, Bible, and journal...and lived in the jungle with the stone-age people who killed her husband. In this authorized biography, Ellen Vaughn uses Elisabeth’s private, unpublished journals, and candid interviews with her family and friends, to paint the adventures and misadventures God used to shape one of the most influential women in modern church history.

While Jesus offers forgiveness for believers who sin, Scripture makes it clear that Christians are to pursue obedience and holiness. So what does it mean to walk in a manner that's "worthy of the gospel of Christ" (Phil. 1:27), and how should that look in the life of a Christ follower? In this short, accessible guide, theologian Sinclair Ferguson explains the importance of living worthy of the gospel, why the principle is often forgotten, and how it's cultivated.

Kevin DeYoung speaks to anxious Christians who feel inadequate or overwhelmed in their faith and assures them that they can experience lasting joy in a life of sincere and simple obedience.

Christians know the importance of prayer, but the act of praying can be a real challenge. Some have the desire, but not always the will; others worry they don't do it well. Books about prayer usually emphasize spiritual discipline, but that can foster more guilt than reassurance. So how can Christians improve their prayer life, embracing the privilege of communicating with God? In The Lord's Prayer, Kevin DeYoung closely examines Christ's model for prayer, giving listeners a deeper understanding of its content and meaning, and how it works in the lives of God's people.

There are many misconceptions about what it means to be humble. Some think that being humble means hiding your talents and abilities or being weak and inauthentic. But the Bible paints a different picture—defining humility as a self-forgetfulness leading to joy and explaining that it is a life-giving virtue that frees you from the restricting needs of your ego. In Humility: The Joy of Self-Forgetfulness, Gavin Ortlund encourages listeners that humility is not just an abstract virtue but a mark of gospel integrity.

Historic statements of faith—such as the Heidelberg Catechism, the Apostles’ Creed, and the Westminster Confession of Faith—have helped the Christian church articulate and adhere to God’s truth for centuries. However, many modern evangelicals reject these historic documents and the practices of catechesis, proclaiming their commitment to “no creed but the Bible.” And yet, in today’s rapidly changing culture, ancient liturgical tradition is not only biblical—it’s essential.

Justin Brierley is convinced that in our time we are witnessing a growing wave of faith. Famously described as the “long, withdrawing roar” of the “Sea of Faith,” the Christian narrative that shaped the West has been replaced by sweeping secularism. But is that the end of the story? It was a conversation with agnostic journalist Douglas Murray that led Brierley to investigate whether a change was on the horizon.

Andrew M. Davis helps listeners commit to extended Scripture memorization so they may grow in holiness, resist temptation, and share the gospel with others. In this brief guide, he offers an accessible, time-tested pattern for studying Scripture that includes simple daily procedures and tips for long-term retention. By building up a storehouse of biblical truth in their hearts, listeners will strengthen their prayer life and intimacy with Christ as they prepare to share God’s truth with others.