Romans 12:4-5 : For even as we have many members in one body, and all the members have not the same office: so we, who are many, are one body in Christ, and severally members one of another. As all Christians are one body in Christ, and members one of another, no member should think himself to be above an-other. The word "office" in verse 4 refers to function. Each member of the body of Christ has an office, a function, just as does each member of our own body, and is an essential part of the body. It is a sobering thought. Paul dwells on this same illustration in greater length in 1 Corinthians 12:12-27.