Niebuhr's theological ethics can be described as relational.

The bioethics is multidisciplinary subject, it dialogues with different ethical issues like philosophical ethics, medical ethics, theological ethics and so one.

Character and the Christian Life: A Study in Theological Ethics (1994)

He is known for his work on theological ethics, politics, social justice, and for developing the Just Peacemaking theory in ethics on the question of war.

His teaching interests are primarily in the areas of philosophical and systematic theology, theological anthropology, person and work of Christ and theological ethics.

He specializes in theological ethics and social life, Christianity and the ethics of the world religions, and public theology and the mission of the churches.

Cotter has taught as adjunct professor of Theological Ethics and the Environment at Fresno Pacific University.

Theological Ethics Translated by William H. Lazareth.

Womanist Theological Ethics: A Reader.

Biological Moral Realism and Theological Ethics', New Blackfriars, (December 2003)