Jonathan Leeman (MDiv, Southern Baptist Theological Seminary) is an elder at Capitol Hill Baptist in Washington, DC. He serves as director of communications for 9Marks and is the editor of its eJournal. Leeman is the author of The Church and the Surprising Offense of God's Love and has been published in several major newspapers and Christian periodicals. He is currently a PhD candidate in theology at the University of Wales.
Mark Dever (PhD, Cambridge University) is senior pastor of Capitol Hill Baptist Church in Washington, DC, and pastor of 9Marks Ministries. Dever has authored over a dozen books and speaks at conferences nationwide.