Characterizing the present ethical situation by three feature, viz., the pervasive sense of moral ambiguity, the divorce of ethics and Biblical exegesis, and the discrepancy between a high Christology and actual Christian obedience, the author sets forth the demand for ""radical obedience"" in the ethics of Rudolf Bultmann as providing the necessary ethical foundation for the correction of these features. In the analysis of this situation, the inadequacies of the ethical positions of such theologians as Niebuhr, Bonhoeffer, Barth and Tillich are examined. While seeing a higher value in the work of Bultmann, the author points critically to certain limitations here, also. A careful and scholarly work, this should be of value to all serious students of the ethical crisis of our time. Bultmann himself adds a brief, appreciative response.