We're in a war. Christ has conquered and we are mopping up. The key to this war is prayer (and action) and the key to these is that we renew our covenant with the Lord on the Lord's Day, Sunday we call it now. When we only get together to hear some sermon and to sing some songs, rather than responding to the Spirit of what God does, we are not engaging in liturgical warfare, we are not preparing our people by transforming them from those filthy with sin to those warrior bride members who have on the full armor of God and who are adorned as a bride for her husband. Revelation, for example, is such a liturgical warfare in which God sums up the whole Bible, tells what happens A. D. 30-70, and this process is what continues to happen, in form, until The Great Day. Word and Sign go together. Most churches don't even celebrate the Lord's Supper weekly.
Now, we are made for this war, Holy War being one of the 3 main arcs of the Bible, along with redemptive history and maturation.
So, war breaks out elsewhere, in some symbolic form, and this is football on Sunday, for instance.
Jeff Meyers' book on worship is a good start. Here it is free on Google Books--also on Amazon. http://books.google.com/books?id=6CSuYz4zj8wC&printsec=frontcover&dq=Meyers+The+Lord's+Service&source=bl&ots=kKRtAc83sp&sig=LqaD10RbN5wVgelCqkbAmYHHhBg&hl=en&ei=mUBPTa_6GoHGlQf7h5w8&sa=X&oi=book_result&ct=result&resnum=3&ved=0CCoQ6AEwAg#v=onepage&q&f=false
I'd love to write more. I pray this is helpful. Love in King Jesus, Chuck