How can we explain Bonhoeffer's clear-sightedness in leading against National Socialism from the beginning of the Third Reich, by contrast with experienced theologians? Around 1930 he experienced his personal turning through the Bible, `especially the Sermon on the Mount'. He replaced the dominating position of the nation in God's historical order, and the social-Darwinist struggle for the survival of the fittest nation, with the task of preventing wars through an international order of peace, including international law. He saw the mission (...) of the church on a new, transnational political horizon as one people of God that has a mission of peace in the world through the gospel. (shrink)