1 Corinthians 7:18-20

18Was anyone called when he already had been circumcised? Let him not make himself uncircumcised. Has anyone been called while uncircumcised? Let him not allow himself to be circumcised.

19Circumcision is nothing and uncircumcision is nothing—but keeping God’s commandments matters.

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