Ethical naturalism as a challenge to theological ethics

There are many versions of naturalism as an overall position, and there are several significant and influential kinds of naturalism in ethics. The latter views may or may not be realist, and, if realist, may or may not be reductive in one or another sense. The antirealist versions include the noncognitivist view that moral claims do not ascribe genuine properties and, unlike assertions of fact, are not strictly speaking true or false. Which of these views, if any, are harmonious with theism, particularly the monotheistic view that God is omniscient, omnipotent, and omnibenevolent? More broadly, which, if any, are a good basis for ethical reflection in the field of religion, conceived broadly as including nontheistic religions? One would think that, whether or not divine directives determine our obligations, the very existence of God would guarantee that there is a real distinction between right and wrong—or anyway that there are normatively authoritative standards of conduct, as there may be even in nontheistic religions. This essay will clarify naturalism in ethics, identify some major options for theologically oriented ethics, and sketch an ethical view that might capture many of the best elements in both perspectives.