1 Corinthians 12:12-15

For as the body is one, and hath many members, and all the members of the body, being many, are one body; so also is Christ. For in one Spirit were we all baptized into one body, whether Jews or Greeks, whether bond or free; and were all made to drink of one Spirit. For the body is not one member, but many. If the foot shall say, Because I am not the hand, I am not of the body; it is not therefore not of the body.