1 Corinthians 3:20; 1 Corinthians 7:5; 1 Corinthians 12:21

20 And again, The Lord knoweth the thoughts of the wise, that they are vain.
5 Defraud ye not one the other, except it be with consent for a time, that ye may give yourselves to fasting and prayer; and come together again, that Satan tempt you not for your incontinency.
21 And the eye cannot say unto the hand, I have no need of thee: nor again the head to the feet, I have no need of you.