Paul disputes with Cephas, also known as Peter from his Hebrew name (inside joke), we were never justified from circumcision even in the old testament but circumcised in the heart if you have faith in Christ. The mosaic laws are there for us to observe God's systemic structure to develop a society and evidence of his existence through his people. The physical circumcision is an act of our faith and shown hygienic benefits for Male reproductive for females cannot have a circumcision unless we are talking about the heart spiritually. Paul makes this clear with Peter.
