Rev. Kwok specializes in the study of contemporary German theologian Wolfhart Pannenberg and the theology of Jürgen Moltmann. In the course of teaching, Rev. Kwok stresses on integral theological thinking, thinking about issues and situations of the times from the perspectives of biblical theology, church history, doctrine theology, spirituality and ethics. Through the theologies of Martin Luther, John Calvin and contemporary German theologians, Rev. Kwok develops his theology, spiritual theology and ethics. In recent years, he begins his research in the theology of the Confessing Church, studying theologies of Karl Barth, Dietrich Bonhoeffer and Hans Joachim Iwand.