William Graham Tullian Tchividjian (pronounced cha-vi-jin), is the senior pastor of one of America’s most well-known churches, Coral Ridge Presbyterian Church in Ft. Lauderdale, Florida, a Lecturer of Pastoral Theology at Knox Theological Seminary, a contributing editor to Leadership Journal, and the grandson of Evangelist Billy Graham. He is a graduate of Columbia International University, where he earned a degree in philosophy, and Reformed Theological Seminary in Orlando, where he earned an M.Div. degree (Master of Divinity). Tullian was the founding pastor of the former New City Church, which merged with Coral Ridge Presbyterian Church in 2009.

Tullian is a best-selling author, having written seven books, the most recent, One Way Love: God’s Inexhaustible Grace for an Exhausted World was released in October 2013. Other titles include, Glorious Ruin: How Suffering Sets You Free, October 2012 (an ECPA finalist for Book of the Year) and Jesus + Nothing = Everything, which won Christianity Today’s book of the year in 2012.

Tullian travels extensively, speaking at conferences, churches, and colleges around the country and is also the founder of LIBERATE – a resource ministry that seeks to “connect God’s inexhaustible grace to an exhausted world” through an annual conference and website. Tullian has appeared on CBS News, Fox and Friends, Morning Joe, Sean Hannity, and the 700 Club. He has also written for the Washington Post, Huffington Post, Christianity Today, and a host of other print outlets. As a respected pastor, author, and speaker, Tullian is singularly and passionately devoted to seeing people set free by the amazing power of God’s grace.

A South Florida native, Tullian has been married to his wife Kim since 1994 and they have three children: Gabe, Nate, and Genna.

The Rev. R-J Heijmen is the Senior Associate Rector for Christian Education, Stewardship and Student Ministries at St. Martin’s Episcopal Church in Houston, Texas. A graduate of the University of California at Berkeley and Trinity Episcopal School for Ministry, R-J was formerly the founding Rector of St. Paul’s Church in New York City and the New York City Director of FOCUS, the Fellowship of Christians in Universities and Schools. R-J’s wife Jaime designs and manufactures interior accessories and they have two sons: Jackson, 12 and Spencer, 9.

The Rev. Aaron M. G. Zimmerman was born in Houston, but grew up in Mexico City; Washington, D.C.; Stockholm; L.A.; and Winston-Salem, North Carolina.

After earning a BA magna cum laude in History and Science at Harvard, Aaron spent two years with an  NGO in Kazakhstan. After that, he worked as a Research Associate at Harvard Business School and as an analyst with H.J. Heinz in Pittsburgh.

He received his Master of Divinity from Trinity Episcopal School for Ministry in 2008. After serving churches in Pittsburgh and Houston, in 2013 he became Rector of St. Alban’s Episcopal Church in Waco, TX. Aaron and his wife, Andrea, are proud parents of three children.

Sarah Condon is an Episcopal priest in the Diocese of Texas. She is married to Josh Condon and mother to Neil and Annie. Sarah serves the people of St. Martin’s Church. Previously, she was a chaplain at St. Luke’s Hospital.



Ashley+NullAshley Null, Episcopal priest and theologian, a visiting fellow at Cambridge University, visiting research fellow at Humboldt-Universitat in Berlin, and 2006 recipient of a Guggenheim Fellowship, received his MDiv from Yale Divinity School and a PhD from Cambridge. His most recent book on Cranmer, Thomas Cranmer’s Thomas Cranmer’s Doctrine of Repentance: Renewing the Power to Love was published by Oxford University Press. Ashley also has a long history as a chaplain to elite athletes, serving as a resident Protestant Chaplain in the Olympic Village during the Los Angeles, Athens, and London Games. Click here to read our coverage of Ashley’s work.