1 Corinthians 7:18

For what knowest thou, O wife, whether thou shalt save thy husband? or how knowest thou, O man, whether thou shalt save thy wife?

But as God hath distributed to every man, as the Lord hath called every one, so let him walk. And so ordain I in all churches.

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

Let every man abide in the same calling wherein he was called.