1 Corinthians 7:3-13 NKJV

3 Let the husband render to his wife the affection due her, and likewise also the wife to her husband.
4 The wife does not have authority over her own body, but the husband does. And likewise the husband does not have authority over his own body, but the wife does.
5 Do not deprive one another except with consent for a time, that you may give yourselves to fasting and prayer; and come together again so that Satan does not tempt you because of your lack of self-control.
6 But I say this as a concession, not as a commandment.
7 For I wish that all men were even as I myself. But each one has his own gift from God, one in this manner and another in that.
8 But I say to the unmarried and to the widows: It is good for them if they remain even as I am;
9 but if they cannot exercise self-control, let them marry. For it is better to marry than to burn with passion.
10 Now to the married I command, yet not I but the Lord: A wife is not to depart from her husband.
11 But even if she does depart, let her remain unmarried or be reconciled to her husband. And a husband is not to divorce his wife.
12 But to the rest I, not the Lord, say: If any brother has a wife who does not believe, and she is willing to live with him, let him not divorce her.
13 And a woman who has a husband who does not believe, if he is willing to live with her, let her not divorce him.