John Piper is founder and lead teacher of desiringGod.org and chancellor of Bethlehem College & Seminary. He served for thirty-three years as a pastor at Bethlehem Baptist Church in Minneapolis, Minnesota, and is the author of more than fifty books, including Desiring God; Don't Waste Your Life; and Providence.

Charles H. Spurgeon (1834-1892) was an English Baptist pastor at New Park Street Chapel, London (which later became the Metropolitan Tabernacle) for thirty-eight years. As the nineteenth century's most prolific preacher and writer, his ministry legacy continues today.

Nancy Guthrie teaches the Bible at her home church, Cornerstone Presbyterian Church in Franklin, Tennessee, as well as at conferences around the country and internationally, including her Biblical Theology Workshop for Women. She is the author of numerous books and the host of the Help Me Teach the Bible podcast with the Gospel Coalition. She and her husband founded Respite Retreats for couples who have faced the death of a child, and they are cohosts of the GriefShare video series.

Alistair Begg is the Bible teacher on Truth For Life, a daily and weekend program that brings the exposition of Scripture to a global audience through radio, podcast, and a wide range of digital and streaming platforms. Since its launch in 1995, Truth For Life has featured teaching drawn from Alistair's decades of faithful preaching at Parkside Church, where he served as senior pastor from 1983 until 2025. Alistair and his wife, Susan, have been married since 1975. They have three grown children and eight grandchildren.

John Calvin (1509-1564) was one of the most influential theologians of the Reformation. Known best for his Institutes of the Christian Religion, he also wrote landmark expositions on most of the books in the Bible.

Skip Ryan is Senior Minister of Park Cities Presbyterian Church in Dallas and has served as Moderator of the General Assembly of the Presbyterian Church in America. Skip is also an instructor for the Japanese Institute for Church Growth in Tokyo. He is a graduate of Harvard University and Westminster Theological Seminary.

Ligon Duncan (PhD, University of Edinburgh) is chancellor, CEO, and John E. Richards Professor of Systematic and Historical Theology at Reformed Theological Seminary. He previously served as the senior minister of the historic First Presbyterian Church in Jackson, Mississippi, for seventeen years. He is a cofounder of Together for the Gospel, a senior fellow of the Council on Biblical Manhood and Womanhood, and was the president of the Alliance of Confessing Evangelicals from 2004-2012. Duncan has edited, written, or contributed to numerous books. He and his wife, Anne, have two children and live in Jackson, Mississippi.

Francis A. Schaeffer (1912-1984) authored more than twenty books, which have been translated into several languages and have sold millions globally. He and his wife, Edith, founded the L'Abri Fellowship international study and discipleship centers. Recognized internationally for his work in Christianity and culture, Schaeffer passed away in 1984 but his influence and legacy continue worldwide.

R. C. Sproul (1939-2017) was founder of Ligonier Ministries, an international Christian discipleship organization located near Orlando, Florida. He was also first minister of preaching and teaching at Saint Andrew's Chapel in Sanford, Florida; first president of Reformation Bible College; and executive editor of Tabletalk magazine. His radio program, Renewing Your Mind, is still broadcast daily on hundreds of radio stations around the world and can also be heard online. Sproul contributed dozens of articles to national evangelical publications, spoke at conferences, churches, colleges, and seminaries around the world, and wrote more than one hundred books, including The Holiness of God; Chosen by God; and Everyone's a Theologian. He also served as general editor of the Reformation Study Bible.

Joni Eareckson Tada is CEO of Joni and Friends, a global ministry that serves the practical and spiritual needs of people with disabilities. She is also an artist and the author of numerous bestselling books, including Joni; A Place of Healing; and When God Weeps. Joni and her husband, Ken, reside in Calabasas, California.

George Whitefield (1714-1770) was a leading evangelical clergyman of the eighteenth century and a primary catalyst of the First Great Awakening, preaching at least eighteen thousand sermons and twelve thousand talks and exhortations.

Martin Luther (1483-1546) was a German theologian and one of the most influential figures in the Protestant Reformation. Some of Luther's best-known works are the Ninety-Five Theses, "A Mighty Fortress Is Our God," and his translation of the Bible into German.

Timothy J. Keller (1950-2023) was the founding pastor of Redeemer Presbyterian Church in New York. He was the bestselling author of The Prodigal God and The Reason for God.

Martyn Lloyd-Jones (1899-1981), minister of Westminster Chapel in London for thirty years, was one of the foremost preachers of his day. His many books have brought profound spiritual encouragement to millions around the world.

J. I. Packer (1926-2020) served as the Board of Governors' Professor of Theology at Regent College. He authored numerous books, including the classic bestseller Knowing God. Packer also served as general editor for the English Standard Version Bible and as theological editor for the ESV Study Bible.

J. C. Ryle (1816-1900) was a prominent writer, preacher, and Anglican clergyman in nineteenth-century England. He is the author of the classic Expository Thoughts on the Gospels and retired as the bishop of Liverpool.

JAMES MONTGOMERY BOICE was senior minister of the historic Tenth Presbyterian Church in Philadelphia for thirty years and a leading spokesman for the Reformed faith until his death in June 2000.

Jonathan Edwards (1703-1758) was a pastor, theologian, and missionary. He is generally considered the greatest American theologian. A prolific writer, Edwards is known for his many sermons, including "Sinners in the Hands of an Angry God," and his classic A Treatise Concerning Religious Affections. Edwards was appointed president of the College of New Jersey (later renamed Princeton University) shortly before his death.

Ray Ortlund is the president of Renewal Ministries, the pastor to pastors at Immanuel Church in Nashville, and a canon theologian with the Anglican Church in North America. He is the author of several books, including Marriage and the Mystery of the Gospel; The Death of Porn; and the Preaching the Word commentaries on Isaiah and Proverbs. He is also a contributor to the ESV Study Bible. Ray and his wife, Jani, have been married for fifty years.

Randy Alcorn is the founder and director of Eternal Perspectives Ministries and a New York Times bestselling author of over sixty books, including Heaven and Face to Face with Jesus. His books have sold over thirteen million copies and been translated into over seventy languages. Randy resides in Gresham, Oregon. Since 2022, his wife and best friend, Nanci, has been living with Jesus in Heaven. He has two married daughters and five grandsons.

R. Kent Hughes (DMin, Trinity Evangelical Divinity School) is senior pastor emeritus of College Church in Wheaton, Illinois, and former professor of practical theology at Westminster Theological Seminary in Philadelphia, Pennsylvania. Hughes is also a founder of the Charles Simeon Trust, which conducts expository preaching conferences throughout North America and worldwide. He serves as the series editor for the Preaching the Word commentary series and is the author or coauthor of many books. He and his wife, Barbara, live in Spokane, Washington, and have four children and an ever-increasing number of grandchildren.

John MacArthur (1939-2025) is the late pastor-teacher of Grace Community Church in Sun Valley, California, where he served since 1969. He is known around the world for his verse-by-verse expository preaching and his pulpit ministry via his radio program, Grace to You. He wrote or edited nearly four hundred books and study guides. MacArthur also served as chancellor emeritus of the Master's Seminary and Master's University.