Galatians 3:13

Abrupt exclamation, as he breaks away impatiently from those who would involve us again in the curse of the law, by seeking justification in it, to "Christ," who "has redeemed us from its curse." The "us" refers primarily to the Jews, to whom the law principally appertained, in contrast to "the Gentiles" (Gal 3:14; compare Gal 4:3-4). But it is not restricted solely to the Jews, as ALFORD thinks; for these are the representative people of the world at large, and their "law" is the embodiment of what God requires of the whole world. The curse of its non-fulfilment affects the Gentiles through the Jews; for the law represents that righteousness which God requires of all, and which, since the Jews failed to fulfil, the Gentiles are equally unable to fulfil. Gal 3:10, "As many as are of the works of the law, are under the curse," refers plainly, not to the Jews only, but to all, even Gentiles (as the Galatians), who seek justification by the law. The Jews' law represents the universal law which condemned the Gentiles, though with less clear consciousness on their part (Rom. 2:1-29). The revelation of God's "wrath" by the law of conscience, in some degree prepared the Gentiles for appreciating redemption through Christ when revealed. The curse had to be removed from off the heathen, too, as well as the Jews, in order that the blessing, through Abraham, might flow to them.

— Jamieson-Fausset-Brown Commentary (public domain)