Randy White is the pastor of Without Walls International Church in Tampa, Fla. Services are broadcast on the Trinity Broadcasting Network. White preaches a “reap what you sow” theology but warns that success is nothing without “significance.”

Rick Warren is pastor of Saddleback Church in Lake Forest, Calif., and author of the best-seller The Purpose Driven Life: What on Earth Am I Here For?

David Demola is the pastor and founder of Faith Fellowship Ministries World Outreach Center in Sayreville, N.J. Financial prosperity is listed among the church’s fundamental beliefs.

Kirbyjon Caldwell is senior pastor of Windsor Village United Methodist Church in Houston. He is the co-author of Entrepreneurial Faith: Launching Bold Initiatives to Expand God’s Kingdom (WaterBrook Press, 2004) and author of The Gospel of Good Success: A Road Map to Spiritual, Emotional and Financial Wholeness (Fireside, 2000). He was a spiritual adviser to President George W. Bush.

Stephen Winzenburg a is a professor of communications at Grand View University in Des Moines, Iowa, where he has studied the fund-raising activities of televangelists, some of whom avow the prosperity gospel.

Milmon F. Harrison is the author of Righteous Riches: The Word of Faith Movement in Contemporary African American Religion (Oxford University Press, 2005). He is an associate professor of African-American and African studies at the University of California, Davis.

Douglas John Hall is author of The Cross in Our Context: Jesus and the Suffering World, in which he examines whether Christianity teaches some a love of consumption and waste. He is emeritus professor of theology at McGill University in Montreal, Quebec. He has written extensively about neo-Orthodoxy.

Craig M. Gay is professor of interdisciplinary studies and associate academic dean at Regent College in Vancouver, B.C., Canada. He has written about evangelical Christianity and its relation to money.

Tony Campolo is a prominent evangelical pastor who helps lead Red Letter Christians, a progressive Christian movement aimed at building a more just society. He is also an author and a professor emeritus at Eastern University in St. Davids, Pennsylvania. Campolo served as a spiritual adviser to President Bill Clinton.