The Keller Center

Staff & Fellows Bios

Executive Director

Collin Hansen

Executive Director

Collin Hansen serves as vice president for content and editor in chief of The Gospel Coalition, as well as executive director of The Keller Center for Cultural Apologetics. He hosts the Gospelbound podcast and has written and contributed to many books, most recently Timothy Keller: His Spiritual and Intellectual Formation and Rediscover Church: Why the Body of Christ Is Essential. He has published with the New York Times and the Washington Post and offered commentary for CNN, Fox News, NPR, BBC, ABC News, and PBS NewsHour. He edited Our Secular Age: Ten Years of Reading and Applying Charles Taylor and The New City Catechism Devotional, among other books. He is an adjunct professor at Beeson Divinity School, where he also co-chairs the advisory board.

Program Director

Michael Graham

Program Director

Michael Graham (MDiv, Reformed Theological Seminary, Orlando) is program director for The Keller Center. He is the executive producer and writer of As in Heaven and has written a forthcoming book titled The Great Dechurching. He is a member at Orlando Grace Church. He is married to Sara, and they have two kids.

Associate Program Director

Skyler Flowers

Associate Program Director

Skyler Reed Flowers (MDiv, Reformed Theological Seminary) is the associate program director at The Keller Center. He serves as an associate pastor at Grace Bible Church in Oxford, Mississippi. Skyler also serves on the steering committee for Rooted Ministries and is a producer for the As in Heaven podcast. He is married to Brianna, and they have a daughter, Beatrice. 

Sam Allberry

Sam Allberry is a pastor, apologist, and speaker. He is the author of 7 Myths About Singleness, Why Does God Care Who I Sleep With?, , What God Has to Say About Our Bodies, and with Ray Ortlund, You’re Not Crazy: Gospel Sanity for Weary Churches. He serves as associate pastor at Immanuel Nashville, is a canon theologian for the Anglican Church in North America, and is the cohost of TGC’s podcast, You’re Not Crazy: Gospel Sanity for Young Pastors.

Sam Chan

Sam Chan (PhD, Trinity Evangelical Divinity School) is the lead mentor and trainer at EvQ School of Evangelism, a ministry of City Bible Forum. Based in Australia, he is the author of several books including, Evangelism in a Skeptical World and How to Talk About Jesus (Without Being That Guy). In these, Sam breakdowns how to share Jesus in both vocational ministry and every day settings. Speaking at conferences around the world on storytelling, apologetics and the practice of evangelism in a post-Christian culture, Sam also blogs at espressotheology.com.

Joshua Chatraw

Joshua Chatraw is the Beeson Divinity School Billy Graham chair for evangelism and cultural engagement at Samford University. His recent books include The Augustine Way, Surprised by Doubtand Telling a Better Story. He also serves as an inaugural fellow with The Keller Center for Cultural Apologetics and a fellow at The Center for Pastor Theologians.

James Eglinton

James Eglinton is Meldrum senior lecturer in Reformed theology at the University of Edinburgh. He is the author of Bavinck: A Critical Biography (Baker Academic, 2020). You can follow him on Twitter.

Craig Ellis

Craig Ellis has a lifelong personal ministry engaging with secular culture in the area of public faith, and equipping other Christians to do the same. Craig has taught numerous classes on sharing the gospel in everyday conversation and responding to common objections to faith. He has also conducted lectures and discussion groups for non-Christians, including a weekly series called the West Side Cafe that was featured in The New York Times. He holds an MBA from Harvard Business School.

Rachel Gilson

Rachel Gilson serves on the leadership team of theological development and culture with Cru and is the author of Born Again This Way: Coming Out, Coming to Faith, and What Comes Next. She is pursuing a PhD in public theology at Southeastern Baptist Theological Seminary and lives outside of Boston with her husband and daughter.

Vanessa Hawkins

Vanessa K. Hawkins (MDiv, DMin, Covenant Theological Seminary) is the Director of Community Life at Redeemer Lincoln Square in New York City.  She is a Bible teacher and conference speaker and serves as diversity advisor for the PCA’s Women’s Ministry.  She is honored to be the wife of her third grade friend Marcus, and together they are the parents of three daughters. You can follow her on Instagram or Twitter.

Michael Keller

Michael Keller (MDiv, ThM, Gordon-Conwell Seminary; PhD, Vrije Universiteit Amsterdam) is the founding and senior pastor of Redeemer Presbyterian Church–Lincoln Square. He worked in London and Boston before returning to Manhattan to start a Reformed University Fellowship. His PhD is in computational linguistics applied to historical theology.

Michael J. Kruger

Michael J. Kruger is president of Reformed Theological Seminary’s campus in Charlotte, North Carolina, where he also serves as professor of New Testament. He served as president of the Evangelical Theological Society in 2019. He is the author of Surviving Religion 101 (Crossway, 2021) and Christianity at the Crossroads: How the Second Century Shaped the Future of the Church (IVP Academic, 2018). He blogs regularly at Canon Fodder.

Rebecca McLaughlin

Rebecca McLaughlin holds a PhD from Cambridge University and a theology degree from Oak Hill Seminary in London. She is the author of Confronting Christianity: 12 Hard Questions for the World’s Largest Religion, The Secular Creed: Engaging Five Contemporary Claims and Jesus Through the Eyes of Women. You can follow her on Twitter or Instagram, or her website.

Alan Noble

Alan Noble, PhD, is author of Disruptive WitnessYou Are Not Your Own, and On Getting Out of Bed and is associate professor of English at Oklahoma Baptist University.

Gavin Ortlund

Gavin Ortlund (PhD, Fuller Theological Seminary) serves as senior pastor of First Baptist Church of Ojai in Ojai, California. He is the author of several books, including Why God Makes Sense in a World That Doesn’t: The Beauty of Christian Theism (Baker Academic, 2021) and Why Protestantism Makes Sense: The Case for An Always Reforming Church (Zondervan Reflective, 2024). He runs the YouTube channel Truth Unites.

Vermon Pierre

Vermon Pierre (MDiv, Trinity Evangelical Divinity School) is a founding pastor and the lead pastor at Roosevelt Community Church in Phoenix, Arizona, and a Council member of The Gospel Coalition. He is the author of Gospel Shaped Living. He is also a cohost for The Un-Silent Church podcast. He and his wife, Dennae, have four children.

Keith Plummer

Keith Plummer (MDiv, PhD, Trinity Evangelical Divinity School) is dean of the School of Divinity and professor of theology at Cairn University in Langhorne, Pennsylvania. He previously served on the pastoral staff of Our Saviour Evangelical Free Church in Wheeling, Illinois. He is published in Before You Lose Your Faith: Deconstructing Doubt in the Church and The Digital Public Square: Christian Ethics in a Technological Society. He and his wife have two children.

Kori Porter

Kori Porter is the former CEO of Christian Solidarity Worldwide. She graduated from the University of Mississippi and completed her MA in theological studies with an emphasis in religion and society from Princeton Theological Seminary. She has been published in His Testimonies, My Heritage and the AND Campaign’s A New Narrative on Abortion: Pro-Woman and Pro-Child. She has 13 years of experience in campus ministry, serving most recently on the campus of Princeton University.

Derek Rishmawy

Derek Rishmawy is the Reformed University Fellowship (RUF) campus minister at University of California Irvine and a PhD candidate at Trinity Evangelical Divinity School. He cohosts the Mere Fidelity podcast. You can follow him on Twitter or read more at his blog.

Glen Scrivener

Glen Scrivener is an ordained Church of England minister and evangelist who preaches Christ through writing, speaking, and online media. He directs the evangelistic ministry Speak Life. Glen is originally from Australia and now he and his wife, Emma, live with their two children in England. They belong to All Souls Eastbourne. He is the author of several books, including The Air We Breathe: How We All Came to Believe in Freedom, Kindness, Progress, and Equality (The Good Book Company, 2022) and 3-2-1: The Story of God, the World, and You (10Publishing, 2014).

Daniel Strange

Daniel Strange is director of Crosslands Forum and the vice president of The Southgate Fellowship. He is a fellow of The Keller Center for Cultural Apologetics and is the author of Their Rock Is Not Like Our Rock: A Theology of Religions (Zondervan, 2015), Plugged In (The Good Book Company, 2019), and Making Faith Magnetic (The Good Book Company, 2021). He is a contributing editor for Themelios and an elder of Hope Community Church, Gateshead, U.K., which is part of the Fellowship of Evangelical Churches (FIEC).

N. Gray Sutanto

N. Gray Sutanto (PhD, University of Edinburgh) is assistant professor of systematic theology at Reformed Theological Seminary in Washington, DC. He is the author of God and Knowledge (Bloomsbury, 2020), coauthor of Neo-Calvinism: A Theological Introduction (Lexham, 2023), cotranslator of Herman Bavinck’s Christian Worldview (Crossway, 2019), and coeditor of Handbook to Neo-Calvinism (T&T Clark, 2024). Gray is married to Indita and they have a daughter. He is an ordained minister in the International Presbyterian Church. You can follow him on Twitter.

Bob Thune

Bob Thune (MA, Reformed Theological Seminary) is founding and lead pastor of Coram Deo Church in Omaha, Nebraska, and a Council member of The Gospel Coalition. He is the author of Gospel Eldership, coauthor of The Gospel-Centered Life and The Gospel-Centered Community, and creator of the Daily Liturgy podcast. In addition to his work as a pastor and writer, he coaches and trains church leaders and helps to lead a classical Christian school.

Jeremy Treat

Jeremy Treat (PhD, Wheaton College) is pastor for preaching and vision at Reality LA in Los Angeles, California, and adjunct professor of theology at Biola University. He is the author of Seek First: How the Kingdom of God Changes Everything and The Crucified King: Atonement and Kingdom in Biblical and Systematic Theology. He and his wife, Tiffany, have four daughters and live in East Hollywood.

Chris Watkin

Chris Watkin (PhD, University of Cambridge) is an Australian Research Council Future Fellow and associate professor in European languages at Monash University in Melbourne, Australia. He is a scholar with an international reputation in modern and contemporary European thought, atheism, and the relationship between the Bible and philosophy. His published work runs the spectrum from academic monographs on contemporary philosophy to books written for general readers, both Christian and secular, including the award-winning Biblical Critical Theory: How the Bible’s Unfolding Story Makes Sense of Modern Life and Culture. You can follow him on Twitter, his academic website, or his Christian resources website.

Trevin Wax

Trevin Wax is vice president of research and resource development at the North American Mission Board and a visiting professor at Cedarville University. A former missionary to Romania, Trevin is a regular columnist at The Gospel Coalition and has contributed to The Washington PostReligion News ServiceWorld, and Christianity Today, which named him one of 33 millennials shaping the next generation of evangelicals. He has taught courses on mission and ministry at Wheaton College and has lectured on Christianity and culture at Oxford University. He is a founding editor of The Gospel Project, has served as publisher for the Christian Standard Bible, and is the author of multiple books, including The Thrill of Orthodoxy, The Multi-Directional LeaderRethink Your Self, This Is Our Time, and Gospel Centered Teaching. He and his wife, Corina, have three children. You can follow him on Twitter or Facebook, or receive his columns via email.

Andrew Wilson

Andrew Wilson is the teaching pastor at King’s Church, London. He’s the author of God of All Things: Rediscovering the Sacred in an Everyday World (Zondervan, 2021). Follow him on Twitter (@AJWTheology).