The basis for a Christian sexual ethic, says Cahill, is a correlation of four sources: Scripture, Christian tradition (of faith, theology, and practice), philosophy, (normative accounts), and the empirical sciences (descriptive accounts). "Cahill's book is a welcome contribution to current discussions of sexual morality; its argument cuts a path between the extreme positions of popular current polemics and established grounds for a solid Christian ethics of sexuality, substantively and methodologically. Subargument. That is the highest tribute a reviewer can, I think, give to any book."