1 Corinthians 12:12-14

12 For example, the body is one unit and yet has many parts. As all the parts form one body, so it is with Christ.
13 By one Spirit we were all baptized into one body. Whether we are Jewish or Greek, slave or free, God gave all of us one Spirit to drink.
14 As you know, the human body is not made up of only one part, but of many parts.