In public debates over biotechnology, theologians, philosophers, and political theorists have proposed that biotechnology could have significant implications for human nature. They argue that ethical evaluations of biotechnologies that might affect human nature must take these implications into account. In this book, Gerald McKenny examines these important yet controversial arguments, which have in turn been criticized by many moral philosophers and professional bioethicists. He argues that Christian ethics is, in principle, committed to some version of the claim that human nature has normative status in relation to biotechnology. Showing how both criticisms and defences of this claim have often been facile, he identifies, develops, and critically evaluates three versions of the claim, and contributes a fourth, distinctively Christian version to the debate. Focusing on Christian ethics in conversation with secular ethics, McKenny's book is the first thorough analysis of a controversial contemporary issue.

Once considered inimical to ethics, Karl Barth's theology is now rightly recognized for the central role ethics plays in it. But can Barth be safely placed in the mainstream tradition of Christian moral theology or does he offer a challenge to the latter? Gerald McKenny argues that the claim that God not only establishes the good from eternity but also brings it about in time is of fundamental importance to Barth's mature ethics. The good confronts us from the site of its fulfilment in Jesus Christ, who has accomplished it in our place. The result is a vision of the moral life as a human analogy to God's grace, a vision which contrasts with the bourgeois vision of the moral life as an expression of human capability. Barth's moral theology is presented here as the attempt to reorder ethical thought and practice in light of this fundamental claim. This lucid and well-argued study is the most comprehensive treatment of Barth's ethics to date, offering a thorough account of the development of Barth's ethical thought and a wide-ranging analysis of its chief concepts and arguments. McKenny explains why certain widespread assumptions about Barth's moral theology are mistaken and explores the rich, complex, and often surprising ways in which Barth's position engages the traditions of Christian ethics and modern continental moral thought. Above all, McKenny shows why Barth's moral theology deserves our attention in spite of, or rather because of, its uneasy fit in the mainstream tradition of Christian moral theology.

Once considered inimical to ethics, Karl Barth's theology is now rightly recognized for the central role ethics plays in it. But can Barth be safely placed in the mainstream tradition of Christian moral theology or does he offer a challenge to the latter? Gerald McKenny argues that the claim that God not only establishes the good from eternity but also brings it about in time is of fundamental importance to Barth's mature ethics. The good confronts us from the site of its fulfilment in Jesus Christ, who has accomplished it in our place. The result is a vision of the moral life as a human analogy to God's grace, a vision which contrasts with the bourgeois vision of the moral life as an expression of human capability.
Barth's moral theology is presented here as the attempt to reorder ethical thought and practice in light of this fundamental claim. This lucid and well-argued study is the most comprehensive treatment of Barth's ethics to date, offering a thorough account of the development of Barth's ethical thought and a wide-ranging analysis of its chief concepts and arguments. McKenny explains why certain widespread assumptions about Barth's moral theology are mistaken and explores the rich, complex, and often surprising ways in which Barth's position engages the traditions of Christian ethics and modern continental moral thought. Above all, McKenny shows why Barth's moral theology deserves our attention in spite of, or rather because of, its uneasy fit in the mainstream tradition of Christian moral theology.

In public debates over biotechnology, theologians, philosophers, and political theorists have proposed that biotechnology could have significant implications for human nature. They argue that ethical evaluations of biotechnologies that might affect human nature must take these implications into account. In this book, Gerald McKenny examines these important yet controversial arguments, which have in turn been criticized by many moral philosophers and professional bioethicists. He argues that Christian ethics is, in principle, committed to some version of the claim that human nature has normative status in relation to biotechnology. Showing how both criticisms and defences of this claim have often been facile, he identifies, develops, and critically evaluates three versions of the claim, and contributes a fourth, distinctively Christian version to the debate. Focusing on Christian ethics in conversation with secular ethics, McKenny's book is the first thorough analysis of a controversial contemporary issue.

Does theological ethics articulate moral norms with the assistance of moral philosophy? Or does it leave that task to moral philosophy alone while it describes a distinctively Christian way of acting or form of life? These questions lie at the very heart of theological ethics as a discipline. Karl Barth's theological ethics makes a strong case for the first alternative. Karl Barth's Moral Thought follows Barth's efforts to present God's grace as a moral norm in his treatments of divine commands, moral reasoning, responsibility, and agency. It shows how Barth's conviction that grace is the norm of human action generates problems for his ethics at nearly every turn, as it involves a moral good that confronts human beings from outside rather than perfecting them as the kind of creature they are. Yet it defends Barth's insistence on the right of theology to articulate moral norms, and it shows how Barth may lead theological ethics to exercise that right in a more compelling way than he did.