1 Corinthians 12:18-21

12:18 But as a matter of fact, God has placed each of the members in the body just as he decided. 12:19 If they were all the same member, where would the body be? 12:20 So now there are many members, but one body. 12:21 The eye cannot say to the hand, “I do not need you,” nor in turn can the head say to the foot, “I do not need you.”