'Of the Circumcision' in the Bible

And the faithful ones who were of the circumcision, so many as came along with Peter, were astonished, because the gift of the Holy Ghost was poured out on the Gentiles also;

And when Peter went tip to Jerusalem, those of the circumcision interviewed him, say

and the father of circumcision to them who not only are of the circumcision, but who also walk in the steps of that faith of our father Abraham, which he had in uncircumcision.

but on the contrary, seeing that I am intrusted with the gospel of the uncircumcision, like Peter of the circumcision,

for the one having wrought with Peter unto the apostleship of the circumcision also wrought with me unto the Gentiles:

For before certain ones came from James, he was eating along with the Gentiles: but when they came, he withdrew and separated himself, fearing those who were of the circumcision.

and Jesus, called Justus, who being of the circumcision: these are my only fellow-laborers in the kingdom of God, who have been made a comfort to me.