A member of the Eastern Orthodox Church, he is noted as one of the foremost rational Christian apologists, arguing in his many articles and books that faith in Christianity is rational and coherent in a rigorous philosophical sense. While he presents many arguments to advance the belief that God exists, he argues that God is a being whose existence is not logically necessary (see modal logic), but metaphysically necessary in a way he defines in his The Christian God. Other subjects on which Swinburne writes include personal identity (in which he espouses a view based on the concept of a soul), and epistemic justification.

Though he is most well-known for his vigorous rational defense of Christian intellectual commitments, he also has a theory of the nature of passionate faith which is developed in his book Faith and Reason.

Source: Wikipedia.