Prosperity can be a real problem. As new Chris­tian churches have flourished in the non-Western world in recent decades, their conservative attitudes on theological and moral issues have caused some discomfort for liberal-minded Euro-Ameri­cans. In one specific area though, namely, the prosperity gospel, criticisms cross partisan boundaries. Even ob­servers deeply sympathetic to the rising churches of Africa or Latin America are troubled by the astonishing success of U.S.-inspired megachurch preachers who present health, wealth and material success as the essential promises of the Christian faith.

If that is indeed the core message of emerging Chris­tianity, should we not be concerned about the future of the faith? Comprehending the prosperity gospel might be the most pressing task for anyone trying to study the changing shape of global Christianity.

In West Africa especially, it is hard to avoid churches with a strong prosperity theme. They find their most ostentatious expression in the wildly successful ministries of preachers like Ghana's Nic­holas Duncan-Williams or Nigeria's David Oyedepo. Across Africa, prosperity teachings are central to the ubiquitous culture of revivals and miracle crusades, so much so that they overwhelm more traditional charismatic or Pentecostal doctrines. As distinguished scholars like Paul Gifford, J. Kwabena Asamoah-Gyadu and David Maxwell have shown, the prosperity message has come to dominate the teaching of many new churches, which draw as much on American ideas of positive thinking and perky self-help manuals as on any familiar Christian theology.