It takes many parts to make a single body.
That's how it is with us. There are many of us, but we are each part of the body of Christ, as well as part of one another.
The body of Christ has many different parts, just as any other body does.
Our bodies don't have just one part. They have many parts.
A body isn't really a body, unless there is more than one part.
That's why the eyes cannot say they don't need the hands. That's also why the head cannot say it doesn't need the feet.