1 Corinthians 7:15-20

15But if the unbeliever wants a divorce, let it take place. In these circumstances the brother or sister is not bound. God has called you in peace.

16For how do you know, wife, whether you will bring your husband to salvation? Or how do you know, husband, whether you will bring your wife to salvation?

17Nevertheless, as the Lord has assigned to each one, as God has called each person, so must he live. I give this sort of direction in all the churches.

18Was anyone called after he had been circumcised? He should not try to undo his circumcision. Was anyone called who is uncircumcised? He should not get circumcised.

19Circumcision is nothing and uncircumcision is nothing. Instead, keeping God’s commandments is what counts.

20Let each one remain in that situation in life in which he was called.