The constant reminder of time revolving around the life of Christ . . . will serve to break down those unhealthy distinctions we make between the secular and the sacred, causing us to realize that all time belongs to the Lord who has created it, redeemed it, and will consummate it in his coming. In addition, it is an excellent teaching tool, a means by which we can assure our congregations of keeping in touch with the events and teaching of the entire Scriptures.
-Robert Webber, Common Roots: The Original Call to an Ancient-Future Faith (Grand Rapids, MI: Zondervan, 2009), 137.