1 Corinthians 7 [6.] 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.
1 Corinthians 7 [12.] 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 they are holy. Yet if the unbeliever departs, let there be separation. The brother or the sister is not under bondage in such cases, but God has called us in peace. For how do you know, wife, whether you will save your husband? Or how do you know, husband, whether you will save your wife? Only, as the Lord has distributed to each man, as God has called each, so let him walk. So I command in all the assemblies.