You'll find these authors and handbooks helpful in your study of Ethics:
Aristotle, Augustine, Thomas Aquinas, Immanuel Kant, Paul Ramsey, Reinhold Niebuhr, Alasdair McIntyre, Gilbert Meilaender, Stanley Hauerwas, Oliver O'Donovan
The series presents discussions on topics of general concern to Christian Ethics, as it is currently taught in universities and colleges, at the level demanded by a serious student. The volumes are neither specialized monographs nor general introductions or surveys. They aim to make a contribution worthy of notice in its own right but also focused in such a way as to provide a suitable starting point for orientation.