Funny you should say that as there is not a single word about circumcision in chapter 3, it's all about justification by faith. Might want to read 3 again
I didn't say chapter 3. But it is what the book is about.
Gal 2:12; For prior to the coming of certain men from James, he used to eat with the Gentiles; but when they came, he began to withdraw and hold himself aloof, fearing the party of the circumcision.
Gal 5:2; Behold I, Paul, say to you that if you receive circumcision, Christ will be of no benefit to you.
Gal 5:3; And I testify again to every man who receives circumcision, that he is under obligation to keep the whole Law.
Gal 5:6; For in Christ Jesus neither circumcision nor uncircumcision means anything, but faith working through love.
Gal 5:11; But I, brethren, if I still preach circumcision, why am I still persecuted? Then the stumbling block of the cross has been abolished.
Gal 6:15; For neither is circumcision anything, nor uncircumcision, but a new creation.
Gal 2:3; But not even Titus, who was with me, though he was a Greek, was compelled to be circumcised.
Gal 2:7; But on the contrary, seeing that I had been entrusted with the gospel to the uncircumcised, just as Peter had been to the circumcised
Gal 2:8; (for He who effectually worked for Peter in his apostleship to the circumcised effectually worked for me also to the Gentiles),
Gal 2:9; and recognizing the grace that had been given to me, James and Cephas and John, who were reputed to be pillars, gave to me and Barnabas the right hand of fellowship, so that we might go to the Gentiles and they to the circumcised.
Gal 6:12; 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.
Gal 6:13; For those who are circumcised do not even keep the Law themselves, but they desire to have you circumcised so that they may boast in your flesh.