If we’re the time’s lords, we don’t determine when to celebrate feasts by looking at the phases of the moon. Paul goes apoplectic when Christians submit to the “elementary things” in the heavens (Gal. 4:8-11; Col. 2:16). As time lords, we have authority to decide when and how to celebrate. We must organize time obediently. We can organize time well only if we have the tunes of creation and redemption running in an endless loop through the ears of our soul.

Peter Leithart, Theopolitan Liturgy