To Will & To Do presents one of the most significant theological contributions of the dynamic twentieth-century thinker Jacques Ellul. Benefiting from recent scholarship on Ellul and a discovery of a lost manuscript, this new edition renders the full text available in English for the first time, combining a fresh translation of volume I with a first English translation of volume II. Together, the two volumes constitute the introductory first part of Ellul's planned four-part treatment of Christian ethics. Volume I examines the origin of the problem of good and evil, outlines the contemporary morality of Western society, and provocatively sketches the paradox of an impossible and yet necessary Christian ethics. Volume II carries this discussion forward, outlining the characteristics and conditions of Christian ethics. It then treats the relationship between ethics and the legal texts of the Bible, the relationship between ethics and dogmatic theology, and concludes by reimagining the theological use of the "analogy of faith" for scriptural interpretation. In constant dialogue with Karl Barth, Dietrich Bonhoeffer, Paul Ricoeur, and many other theologians and philosophers, To Will & To Do constitutes a major intervention in twentieth-century theological ethics.