What makes a group of individuals the body of Christ is not that they share a certain set of beliefs about Christ.  What makes a group of individuals the body of Christ is that they are about the same work that occupied their master.

Every act of generosity and forgiveness is a localized instance of God’s grace; every kind word is a human echo of the symphony of concern that echoes down in the falling rain and floods the starry night with music; each and every helping hand is God’s boundless love for humanity made flesh.