made of a woman, made under the law, To redeem those under the law, that we might receive the adoption of sons.

For it is written in the law about Abraham's two sons [Gen. 16]; one [was] by his slave woman [Hagar] and the other by the free woman, [his wife, Sarah].

For through the Law I died to the Law and its demands on me [because salvation is provided through the death and resurrection of Christ], so that I might [from now on] live to God.

But, just as it was then --- the son born in the ordinary way [i.e., Ishmael] persecuting the one born according to the Holy Spirit's [leading, i.e., Isaac] --- so it is now [i.e., Jews urging compliance with the requirements of the law of Moses persecuting those who refuse to return to dependance on that law for salvation. See 3:1-3].

"yet because we know that no man is justified by the works of the Law, but by the faith of Jesus Christ, we ourselves also have put our faith in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the Law; for "By the works of the Law shall no flesh be justified."

Is the Law then opposed to the promises of God? Certainly not; for if a law had been given which could make alive, then righteousness would actually have come from law;

For all who depend on the Law [seeking justification and salvation by obedience to the Law and the observance of rituals] are under a curse; for it is written, “Cursed (condemned to destruction) is everyone who does not abide by all things written in the book of the law, so as to practice them.”