I Corinthians 7:3-5

³The husband must fulfill his duty to his wife, and likewise also the wife to her husband. ⁴The wife does not have authority over her own body, but the husband does; and likewise also the husband does not have authority over his own body, but the wife does. ⁵Stop depriving one another, except by agreement for a time, so that you may devote yourselves to prayer, and come together again so that Satan will not tempt you because of your lack of self-control.