William Graham Tullian Tchividjian (pronounced cha-vi-jin) is a Florida native and the new pastor of Coral Ridge Presbyterian Church, a visiting professor of theology at Reformed Theological Seminary, and a grandson of Billy and Ruth Graham.

A graduate of Columbia International University (philosophy) and Reformed Theological Seminary in Orlando, Tullian is the author of The Kingdom of God: A Primer on the Christian Life(Banner of Truth), Do I Know God? Finding Certainty in Life’s Most Important Relationship(Multnomah) and Unfashionable: Making a Difference in the World by Being Different(Multnomah, forthcoming April 2009).

The author of numerous articles, Tullian is a contributing editor to Leadership Journal. Tullian speaks at conferences throughout the U.S. and his sermons are broadcast daily on the radio program Godward Living.