Galatians 2:3; Galatians 2:14; Galatians 6:12

3 But not even Titus, who was with me, though he was a Greek, was compelled to be circumcised.
14 But when I saw that they were not straightforward about the truth of the gospel, I said to Cephas in the presence of all, "If you, being a Jew, live like the Gentiles and not like the Jews, how is it that you compel the Gentiles to live like Jews?
12 Those who desire to make a good showing in the flesh try to compel you to be circumcised, simply so that they will not be persecuted for the cross of Christ.