[In 2007, I wrote this essay for a compilation of articles on Reformational liturgy. The project was going to be edited by the late Gregg Strawbridge. Gregg had already edited books of essays on baptism and paedocommunion, so the book on liturgy would complete the trilogy. Alas, too many other contributors got sidetracked and the project never fully materialized. I was pleased with my essay and would be glad for it to get a wider reading. My aim was to survey the background to Reformed worship to demonstrate the surprising richness of our tradition and look ahead to how biblical theology could further improve and sharpen our worship practices going forward. The essay has been available on our website for along time, but I figure I'd put it on the blog as well.]