1 Corinthians 7:15-17

15But if the unbeliever leaves, let it be so. The brother or the sister is not bound in such circumstances; God has called us to live in peace.

16How do you know, wife, whether you will save your husband? Or, how do you know, husband, whether you will save your wife?

Concerning Change of Status 17Nevertheless, each person should live as a believer in whatever situation the Lord has assigned to them, just as God has called them. This is the rule I lay down in all the churches.