As a global religion with growing numbers of expressions, Christianity calls for deepening relationships across traditions while also formulating collaborative visions. A thriving church will require Christians from various traditions and on varying trajectories to become familiar with one another, appreciate one another, and work in common service to God in Jesus Christ. In this book, a group of thirteen distinguished scholars from around the world and representing a range of Orthodox, Catholic, and Protestant perspectives demonstrate how theological reflection and broad-based ecumenical...