The entire worship life of the Old Testament has been radically refocused onto Jesus Himself and has become a radically spiritual thing, as opposed to an external thing. The external is still important, but now the spiritual is so radically pervasive that virtually all of external life, not just church life, is the expression of worship. “Present your bodies as living sacrifices which is your reasonable service of worship” (Romans 12:1). That’s all the time and everywhere. “Whether, then, you eat or drink or whatever you do, do all to the glory of God” (1 Corinthians 10:31): all the time, everywhere.
—John Piper, “Our High Priest is The Son of God Perfect Forever” (sermon, December 8, 1996)