This rare volume provides a concise statement of the major ideas of one of the greatest Protestant thinkers of the twentieth century, Karl Barth. Divided into three parts, it presents Barth's lecture, "The Holy Spirit and the Christian Life." This work emphasizes Barth's focus on the Trinitarian character of God's self-revelation. Barth insists there is no way to get behind or beyond the fact that God is revealed to us in three distinct ways, yet with a unity that cannot be divided. He claims that we can finally look only to God's self-disclosure as the reliable basis for Christian ethics. The Library of Theological Ethics series focuses on what it means to think theologically and ethically. It presents a selection of important and otherwise unavailable texts in easily accessible form. Volumes in this series will enable sustained dialogue with predecessors though reflection on classic works in the field.