Can we refuse fellowship with the Jews?
Can we refuse fellowship with the seven nations that surround Israel?
I think you're getting a bit side-tracked ... we're talking about whether or not Christians can practise what were Jewish laws ...
I'm not aware of any Jewish law that said Gentiles can't fellowship with Jews. Gentiles weren't under Jewish law ... that's why they're called Gentiles.
Btw, it's my understanding that the Jewish "law" to not socialize with Gentiles is not part of law of Moses. It was a man-made custom, designed to keep Jews getting involved in pagan practices, like consuming non-kosha food. No need for Christians to follow man-made laws.
Peter was not two faced, Peter was condemned!
The text doesn't say that Peter only forced the Gentiles under the law. When the circumcision group arrived. That's not what it says.
It's implied in the text, if you read it carefully.
In Gal 2:14, this is what Paul said to Peter:
“If you, though a Jew, live like a Gentile and not like a Jew, how can you compel the Gentiles to live like Jews?”
That verse says Peter lived "like a Gentile", implying that while he was with the Gentiles he didn't follow Jewish customs ... which of course implies that he didn't make his Gentile brethren follow Jewish customs either.
Then Paul says Peter compelled "the Gentiles to live like Jews". So now Peter is doing the opposite thing with the Gentiles - he IS making them follow Jewish customs.
So Paul is describing Peter doing two different things -
1. Peter DOES NOT compel Gentiles to follow Jewish customs, then
2. Peter DOES compel Gentiles to follow Jewish customs.
Peter's inconsistent behaviour towards the Gentiles is explained by v.12:
""For BEFORE certain men came from James, he ate with the Gentiles; BUT WHEN THEY CAME he drew back and separated himself, fearing the circumcision party."
Peter feared "the circumcision party" - Jewish converts who believed Gentile converts must follow Jewish laws. So when these Judaizers arrived in Antioch, Peter appeased them by not only separating himself from the Gentile brethren, but by also making the Gentiles followJewish customs.
Peter's two-faced behavior is what Paul got so upset about. Obviously, Paul didn't fear the "circumcision party" like Peter did.