1 Corinthians 7:14-16

American Standard Version

¹⁴ For the unbelieving husband is sanctified in the wife, and the unbelieving wife is sanctified in the brother: else were your children unclean; but now are they holy. ¹⁵ Yet if the unbelieving departeth, let him depart: the brother or the sister is not under bondage in such cases: but God hath called ^[a]us in peace. ¹⁶ For how knowest thou, O wife, whether thou shalt save thy husband? or how knowest thou, O husband, whether thou shalt save thy wife?