Faith, since the earliest Christian theologians, has been regarded as the fundamental Christian virtue--the prerequisite for hope, charity, and good works. In this book, Avery Dulles examines the biblical foundations and history of theological reflection on faith, from the Greek and Latin fathers to such modern giants as Tillich, Rahner, and Lonergan. Further, Dulles presents his own systematic synthesis, reflecting on such topics as the nature and object of faith; the certitude of faith; the birth, growth, and loss of faith; and faith and salvation. The result is a refreshingly relevant theology of faith for our day.