The significance of a sign is that it is a visible means through which the Gospel of Jesus Christ is proclaimed. All signs are rooted in the incarnation of God in Jesus Christ as their ultimate point of reference. . . . Consequently, a sign is a witness to the saving event of Jesus. Both the Bible and the Communion Table are means of proclaiming Christ.
-Robert Webber, Worship Is a Verb: Celebrating God’s Mighty Deeds of Salvation, Second Edition (Peabody, MA: Hendrickson Publishers, 1996), 70.