Michael Frost is professor of evangelism and missions at Morling College in Sydney, Australia, and a Baptist minister. He is the author of Exiles: Living Missionally in a Post-Christian Culture and the coauthor of ReJesus: A Wild Messiah for a Missional Church.Alan Hirsch is the founding director of Forge Mission Training Network and a founder of shapevine.com. He is the author of The Forgotten Ways: Reactivating the Missional Church and The Forgotten Ways Handbook.