1 Corinthians 12:12, 15-20, 27

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.

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. And if the ear shall say, Because I am not the eye, I am not of the body; it is not therefore not of the body. If the whole body were an eye, where were the hearing? If the whole were hearing, where were the smelling? But now hath God set the members each one of them in the body, even as it pleased him. And if they were all one member, where were the body? But now they are many members, but one body.

Now ye are the body of Christ, and severally members thereof.