Galatians 5:3-4.5x3=15+4=19 One of the strongest pieces of evidence that Paul’s opponents were the original apostles

Galatians 5:3-4]
One of the strongest pieces of evidence that Paul’s opponents were the original apostles
comes in Galatians 2:6-14:
Those who were regarded as important, however (and it makes
no difference to me how prominent they were-God plays no
favorites), made me add nothing. On the contrary, recognizing
that I had been entrusted with the gospel for the
uncircumcised...those who were the acknowledged pillars,
James, Cephas, and John, gave Barnabas and me the handclasp
of fellowship, signifying that we should go to the Gentiles as they
to the Jews.... When Cephas came to Antioch I directly withstood
him, because he was clearly in the wrong. He had been taking
his meals with the Gentiles before others came who were from
James. But when they arrived he drew back to avoid trouble with
those who were circumcised. The rest of the Jews joined in his
dissembling, till even Barnabas was swept away by their
pretense. As soon as I observed that they were not being
straightforward about the truth of the gospel, I had this to say to
Cephas in the presence of all: “If you who are a Jew are living
according to Gentile ways rather than Jewish, by what logic do
you force the Gentiles to adopt Jewish ways?”