First Letter to the Corinthians

But, because of sexual immoralities, let each man have his own wife, and let each woman have her own husband.

Let the husband render to his wife the affection owed her, and likewise also the wife to her husband.

The wife doesn't have authority over her own body, but the husband. Likewise also the husband doesn't have authority over his own body, but the wife.

Don't deprive one another, unless it is by consent for a season, that you may give yourselves to fasting and prayer, and may be together again, that Satan doesn't tempt you because of your lack of self-control.

But this I say by way of concession, not of commandment.

Yet I wish that all men were like me. However each man has his own gift from God, one of this kind, and another of that kind.

But I say to the unmarried and to widows, it is good for them if they remain even as I am.

But if they don't have self-control, let them marry. For it's better to marry than to burn.

But to the married I command -- not I, but the Lord -- that the wife not leave her husband

(but if she departs, let her remain unmarried, or else be reconciled to her husband), and that the husband not leave his wife.

But to the rest I -- not the Lord -- say, if any brother has an unbelieving wife, and she is content to live with him, let him not leave her.

The woman who has an unbelieving husband, and he is content to live with her, let her not leave her husband.

For the unbelieving husband is sanctified in the wife, and the unbelieving wife is sanctified in the husband. Otherwise your children would be unclean, but now are they holy.