This is an academic work of the highest quality, but Jean-Marc Flückiger presents it in a way that makes it very accessible far beyond academic circles. It is a testament to his sharp intellect, but even more to his love of God, commitment to The Salvation Army, and heartfelt dedication to the Church's mission in the world.Henrik Andersen, Territorial Leader of The Salvation Army Switzerland-Austria-Hungary Jean-Marc Flückiger's book is a welcome reflection on the missionary impulse of Christian churches. I found it particularly helpful to consider the interplay of the three main «ingredients» of mission, namely worship of God, community life, and service to the world.Christophe Chalamet, Professor of Systematic Theology, University of Geneva.