In an age of global migration, how should Christian theologians and church leaders respond to its various challenges and problems? What is a fundamental theological framework with which we are to engage in them? In this volume, Ilsup Ahn attempts to answer these questions by presenting a “Trinitarian theology of migration.” In doing so, he first provides an overview of recent theological works on migration by introducing their key theological insights. A Trinitarian theology of migration becomes possible as we begin to see that the three Sacred Persons (the Son, the Father, and the Holy Spirit) are distinctively, yet intrinsically involved with the phenomenon of human migration within God’s grand vision of liberation and redemption. From a Trinitarian theological perspective, in all stages of human migration from taking leave to getting integrated, migrants and citizens are called to join in God’s liberative and redemptive works for all the people of God.