1 Corinthians 7:3-5

7:3 Let the husband render unto the wife due benevolence: and likewise also the wife unto the husband. 7:4 The wife hath not power of her own body, but the husband: and likewise also the husband hath not power of his own body, but the wife. 7:5 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.