I am wondering how a certain observation fits in with the fact that only what God orders is permitted in worship: there are no written songs in the Bible, only lyrics. This really is quite puzzling, as it seems to mean that we are commanded to sing, yet we must necessarily bring in a song's musical notation from outside the text. How is this not some form of will-worship? And how far does it allow outside influences to go? Also, how does the fact that we can sing psalms in a different language from the original tie in with the RPW?