1 Corinthians 7:5-7

5 Do not deprive one another, unless [it is] with consent for a time, so that you may give yourselves to fasting and prayer. And come together again so that Satan does not tempt you for your incontinence.

6 But I speak this according to permission, not according to commandment.

7 For I would that all men were even as I myself am. But each has his proper gift from God, one according to this manner and another according to that.