1 Corinthians 7:18-20

18Was a man already circumcised when he was called? He should not become uncircumcised. Was a man still uncircumcised when called? He should not be circumcised. 19Circumcision is nothing and uncircumcision is nothing. Keeping God’s commandments is what counts.

20Each one should remain in the situation he was in when he was called.