What analogy does Paul use in 1 Corinthians 12 to describe the body of Christ?
Paul uses the human body as an analogy: one body with many members—hands, feet, eyes, toes—yet it remains one. In 1 Corinthians 12, all believers, Jew or Gentile, bond or free, are baptized by one Spirit into that one body, the body of Christ, which is not a denomination.
Les explains that Paul is using the analogy or illustration of a human body in 1 Corinthians 12. Just as our human body is one but has many members—ten fingers, ten toes, two eyes—so also is Christ, or the body of Christ. Verse 13 says by one Spirit all believers, not just a chosen few, are baptized or placed into that one body, the body of Christ. It is not a denomination. Whether Jew or Gentile, bond or free, all have been made to drink or partake of that one Spirit. Paul then returns to the physical body: the body is not one member but many. He illustrates with the foot saying it is not the hand, or the little toe that is usually unseen but is still part of the body; losing it would be missed.
For as the body is one, and hath many members, and all the members of that one body, being many, are one body: so also is Christ.