1 Corinthians 7:10-14

Common(i) 10 To the married I give charge, not I but the Lord, that the wife should not separate from her husband 11 (but if she does leave, she must remain unmarried, or else be reconciled to her husband), and that the husband should not divorce his wife. 12 But to the rest I say, not the Lord, that if any brother has a wife who is an unbeliever, and she consents to live with him, he must not divorce her. 13 If any woman has a husband who is an unbeliever, and he consents to live with her, she must not divorce him. 14 For the unbelieving husband is sanctified through his wife, and the unbelieving wife is sanctified through her husband. Otherwise, your children would be unclean, but as it is they are holy.