'Belong' in the Bible

Now I mean this, that each one of you says, “I am [a disciple] of Paul,” or “I am [a disciple] of Apollos,” or “I am [a disciple] of Cephas (Peter),” or “I am [a disciple] of Christ.”

For when one of you says, “I am [a disciple] of Paul,” and another, “I am [a disciple] of Apollos,” are you not [proving yourselves unchanged, just] ordinary people?

If the foot says, “Because I am not a hand, I am not a part of the body,” is it not on the contrary still a part of the body?

If the ear says, “Because I am not an eye, I am not a part of the body,” is it not on the contrary still a part of the body?