1 Corinthians 7:15-20

15But if the unbeliever departs, let him depart; a brother or a sister is not under bondage in such cases. But God has called us to peace.

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

17But as God has distributed to each one, as the Lord has called each one, so let him walk. And so I ordain in all the churches.

18Was anyone called while circumcised? Let him not become uncircumcised. Was anyone called while uncircumcised? Let him not be circumcised.

19Circumcision is nothing and uncircumcision is nothing, but keeping the commandments of God is what matters.

20Let each one remain in the same calling in which he was called.