The expression, “the body of Christ,” has become such a common name for the church that we may not reflect upon what it means for the life of the church. In 1 Corinthians 12:12-27, we have the most complete explanation of the similarity between the human body and the church. Both the human body and the church are unities made up of many diverse members. Therefore, the church needs all of its members, and the members need to function as a unity.