This book is situated within the realm of theological engagement with the sciences with a particular focus on how the nature of ethics is understood through this dialogue. Its purpose is to provide a theological appreciation of the nature of ethics which also takes seriously evolutionary accounts of how ethics came to be. It argues that such a theological metaethic can be interpreted as hopeful and optimistic given the apparent evolution of the moral from the amoral. This work hinges on two different but intertwined levels. One is the level of ethical systems: a particular understanding of Western Christian ethics. This level is framed by another, broader level of metaethics: an overarching understanding of the character of ethics that emerges from reflections on evolutionary theory and its naturalistic context.