Tullian Tchividjian is the author of "Glorious Ruin: How Suffering Sets You Free," that released in 2012.  He also is the former senior pastor of Coral Ridge Presbyterian Church in Fort Lauderdale, Fla., and the grandson of Billy Graham. Tchividjian is pictured here with Billy Graham.

Tullian Tchividjian is the author of “Glorious Ruin: How Suffering Sets You Free,” that released in 2012. He also is the former senior pastor of Coral Ridge Presbyterian Church in Fort Lauderdale, Fla., and the grandson of Billy Graham. Tchividjian is pictured here with Billy Graham.