While the New Testament has little to say about worship, many in the Reformed world continue to heatedly debate on the topic, with seemingly minor ceremonies or innovations revealing deep theological questions about the regulative principle and about how much can and should be adapted for modern worship. In this small but thoughtful book, Peter Leithart examines David's liturgical innovations in Samuel and Chronicles, and teases out fascinating implications, not only for what the Bible requires of worship, but also for how the Old Testament continues to apply in the new covenant. One of the best things I have ever read ---Douglas Wilson, New Saint Andrews College Peter J. Leithart (PhD, Cambridge) is President of Theopolis Institute in Birmingham, Albama and an Adjunct Senior Fellow at New Saint Andrews College in Moscow, Idaho. He is the author of numerous books on theology and literature, including The Baptized Body, Against Christianity, Brightest Heaven of Invention, and Ascent to Love. He has also authored articles in journals such as Pro Ecclesia, Journal of Biblical Literature, Westminster Theological Journal, and First Things. Peter and his wife Noel have ten children and a fetching collection of grandchildren.