1 Corinthians 12:17-20

17If the whole body were an eye, where would the sense of hearing be? If the whole body were an ear, where would the sense of smell be?

18But in fact God has placed the parts in the body, every one of them, just as he wanted them to be.

19If they were all one part, where would the body be?

20As it is, there are many parts, but one body.