Bangert shows how the work of three major contemporary Protestant thinkers, James M. Gustafson, Sallie McFague, and David Ray Griffin, may be fruitfully appropriated for the articulation of an ethics that is responsive to the Christian tradition while sharing the modern commitment's appeal to human experience and reason. Each of these three thinkers eschews a priori appeal to the authority of religious tradition, as each takes seriously scientific knowledge of our world. Each accents ways in which current scientific understandings inform, and in some cases are informed by, contemporary appropriations of the language and thought of Christian tradition. Each is also concerned to relate his or her approach to human valuing, life, and action. A critical appraisal of their work shows that none provides a sufficient basis for an intellectually and religiously adequate theological ethics, but that each contributes elements necessary to the articulation of such an ethics within the Protestant Christian tradition as it confronts the religious and intellectual challenges of today's world.