Since the genesis of The Salvation Army, the mercy seat has been central - architecturally and theologically - to its soul-saving mission. History testifies that at the mercy seat God changes lives. Nigel Bovey investigates the past to see how, where and why the mercy seat became the focal point of Salvationist worship and witness. With the help of personal insights from hundreds of other Salvationists, the author looks at how the mercy seat is currently used around the world and considers future challenges facing the mercy seat. He also examines the biblical foundations and scriptural principles for making a public response to God.