The painful reality faced by refugees and migrants is one of the greatest moral challenges of our time, in turn, becoming a focus of significant scholarship. This volume examines the global phenomenon of migration in its theological, historical, and socio-political dimensions and of how churches and faith communities have responded to the challenges of such mass human movement. The contributions reflect global perspectives with contributions from African, Asian, European, North American, and South American scholars and contexts.  The essays are interdisciplinary, at the intersection of religion, anthropology, history, political science, gender and post-colonial studies. The volume brings together a variety of perspectives, inter-related by ecclesiological and theological concerns.