" There are many metaphors used in Scripture to describe the church. It is called a family, a kingdom, a vineyard, a flock, a building, and a bride. But the most profound metaphor, one having no Old Testament equivalent, is that of a Body. The church is a Body, and Christ is the head of the Body. "

― John F. MacArthur Jr. , Colossians and Philemon: New Testament Commentary (MacArthur New Testament Commentary Serie)