[Elsie]

Then: Certain people came down from Judea to Antioch and were teaching the believers: “Unless you are circumcised, according to the custom taught by Moses, you cannot be saved.”

Now: Certain people came down from ROME to Antioch and were teaching the believers: “Unless you are baptised, according to the custom taught by PETER, you cannot be saved.”

[Cronos]

Elsie: Certain people came down from Judea to Antioch and were teaching the believers: “Unless you are circumcised, according to the custom taught by Moses, you cannot be saved.”

Good for you, next will you be preaching " And the prophet J. Smith came with golden plates"?

[Cronos]

Elsie: Certain people came down from Judea to Antioch and were teaching the believers: “Unless you are circumcised, according to the custom taught by Moses, you cannot be saved.”

Remember that those preaching this were strictly sticking to the scripture in terms of what should be done

They didn't follow the Apostolic Tradition as first experienced by Peter on the clean and unclean and then expanded by Paul about no need for circumcision

So these folks from Judea talking sola scriptura were akin to your philosophies.