1 Corinthians 7:14-16

New Revised Standard Version Catholic Edition

¹⁴ For the unbelieving husband is made holy through his wife, and the unbelieving wife is made holy through her husband. Otherwise, your children would be unclean, but as it is, they are holy. ¹⁵ But if the unbelieving partner separates, let it be so; in such a case the brother or sister is not bound. It is to peace that God has called you.^{[a] 16} Wife, for all you know, you might save your husband. Husband, for all you know, you might save your wife.