The purpose of this article is to examine the poems of R. S. Thomas and to attempt some exegesis of them from a theological point of view. So far as I know, this has not been attempted before. Naturally enough, the poems of this writer have already received considerable attention from a literary viewpoint, and critics and reviewers have established certain of their more obvious characteristics : their spare diction, their rich imagery, their hardness to the touch, the quality of perfection in some of the lyrics, their frequent mood of anger or near despair. The fact that the writer is a priest with a small country parish in Wales is, of course, always registered. It accounts for his concern with the countryside, with the difficult relationship between the life of the mind and the life of the land, for his concern with the past, present and future of the people of Wales. Doubtless there is much more to be done here. In this article however we shall not be doing it. Our purpose is rather to enquire into some of the underlying structures of Christian thinking which the poems reveal, and what their significance may be for the Christian believer who is trying to think through the meaning of his faith. Whatever ,else may be uncertain about R. S. Thomas, it is clear that he does not reveal his deepest thoughts and feelings easily. We shall have to look beneath the surface for the heart of what he is saying.