{10} For as many as are of the works of the law are under the curse: {11} for it is written, Cursed is every one that continueth not in all things which are written in the book of the law to do them.

(10) The sixth argument, the conclusion of which is also in the former verse, taken from opposites, is this: they are accursed who are of the works of the Law, that is to say, who consider their righteousness to come from the performance of the Law. Therefore they are blessed who are of faith, that is, those who have righteousness by faith.

(11) A proof of the former sentence or proposition, and the proposition of this argument is this: cursed is he that does not fulfil the whole Law.

People's New Testament

3:10 For as many as are of the works of the law are under the curse. Having just shown that believers through Christ are justified, he next shows that all under the law are in condemnation.

It is written. See De 27:26. Compare Ro 3:19,20.

Cursed is every one that continueth not, etc. Not only those under the law fail of justification, but the curse rests upon them, for all fail to obey all the things in the law. See Ro 3:23.

Wesley's Notes

3:10 They only receive it. For as many as are of the works of the law - As God deals with on that footing, only on the terms the law proposes, are under a curse; for it is written, Cursed is every one who continueth not in all the things which are written in the law. Who continueth not in all the things - So it requires what no man can perform, namely, perfect, uninterrupted, and perpetual obedience. Deu 27:26

Jamieson-Fausset-Brown Bible Commentary

10. Confirmation of Ga 3:9. They who depend on the works of the law cannot share the blessing, for they are under the curse "written," De 27:26, Septuagint. Perfect obedience is required by the words, "in all things." Continual obedience by the word, "continueth." No man renders this obedience (compare Ro 3:19, 20). It is observable, Paul quotes Scripture to the Jews who were conversant with it, as in Epistle to the Hebrews, as said or spoken; but to the Gentiles, as written. So Matthew, writing for Jews, quotes it as "said," or "spoken"; Mark and Luke, writing for Gentiles, as "written" (Mt 1:22; Mr 1:2; Lu 2:22, 23) [Townson].

Matthew Henry's Concise Commentary

3:6-14 The apostle proves the doctrine he had blamed the Galatians for rejecting; namely, that of justification by faith without the works of the law. This he does from the example of Abraham, whose faith fastened upon the word and promise of God, and upon his believing he was owned and accepted of God as a righteous man. The Scripture is said to foresee, because the Holy Spirit that indited the Scripture did foresee. Through faith in the promise of God he was blessed; and it is only in the same way that others obtain this privilege. Let us then study the object, nature, and effects of Abraham's faith; for who can in any other way escape the curse of the holy law? The curse is against all sinners, therefore against all men; for all have sinned, and are become guilty before God: and if, as transgressors of the law, we are under its curse, it must be vain to look for justification by it. Those only are just or righteous who are freed from death and wrath, and restored into a state of life in the favour of God; and it is only through faith that persons become righteous. Thus we see that justification by faith is no new doctrine, but was taught in the church of God, long before the times of the gospel. It is, in truth, the only way wherein any sinners ever were, or can be justified. Though deliverance is not to be expected from the law, there is a way open to escape the curse, and regain the favour of God, namely, through faith in Christ. Christ redeemed us from the curse of the law; being made sin, or a sin-offering, for us, he was made a curse for us; not separated from God, but laid for a time under the Divine punishment. The heavy sufferings of the Son of God, more loudly warn sinners to flee from the wrath to come, than all the curses of the law; for how can God spare any man who remains under sin, seeing that he spared not his own Son, when our sins were charged upon him? Yet at the same time, Christ, as from the cross, freely invites sinners to take refuge in him.