As founding pastor of Saddleback Church with his wife, Kay, Dr. Rick Warren leads a 30,000-member congregation in California with campuses in major cities around the world.

As an author, his book The Purpose Driven Life has been called the bestselling non-fiction hardback in publishing history by Publishers Weekly, having sold more than 33 million copies.

As a theologian, he has lectured at Oxford, Cambridge, Harvard, University of Judaism, and dozens of universities and seminaries. As a global strategist he advises world leaders and has spoken to the United Nations, US Congress, Davos Economic Forum, TED, Aspen Institute, and numerous parliaments.

Rick has also founded the Global PEACE Plan, which Plants churches of reconciliation, Equips leaders, Assists the poor, Cares for the sick, and Educates the next generation in 196 countries.

Jorge Mario Bergoglio was born in Buenos Aires, Argentina, on December 17, 1936, the son of Italian immigrants. He was ordained a priest in the Society of Jesus (Jesuits) in 1969 and made a bishop in 1992.

He became Archbishop of Buenos Aires in 1998 and was named a cardinal in 2001. In March 2013 he was elected Bishop of Rome, the 266th pope of the Catholic Church.

N. T. Wright is the former bishop of Durham in the Church of England and one of the world's leading Bible scholars. He is now serving as the Chair of New Testament and Early Christianity at the School of Divinity at the University of St. Andrews.

For twenty years he taught New Testament studies at Cambridge, McGill, and Oxford Universities, and he has been featured on ABC News, Dateline, The Colbert Report, and Fresh Air. Wright is the award-winning author of Surprised by Scripture, The Case for the Psalms, How God Became King, Simply Jesus, After You Believe, Surprised by Hope, Simply Christian, Scripture and the Authority of God, The Meaning of Jesus (coauthored with Marcus Borg), as well as being the translator for The Kingdom New Testament.