Karl Barth has influenced Christian theology of mission in terms of his Trinitarian concept of God's mission. His theology of reconciliation retains inter-religious implication in missional context. However, Barth's theology of reconciliation is not explored in the context of religious pluralism. The reason is due to the neo-orthodox charge against him and theologians' one-sided critique of Barth as a conservative-evangelical theologian. In this paper at issue is to retrieve hermeneutically Barth as a theologian of reconciliation who stands for Christian witness to the grace of God in the world of religions.