Have you been vouchsafed, he says, so great a gift, and achieved such wonders, because you observed the Law, or because you adhered to Faith? Plainly on account of Faith. Seeing that they played this argument to and fro, that apart from the Law, Faith had no force, he proves the contrary, viz., that if the Commandments be added, Faith no longer avails; for Faith then has efficacy when things from the Law are not added to it. “You who would be justified by the Law, you are fallen away from grace:” This he says later, when his language has grown bolder, employing the vantage-ground by that time gained; meanwhile while gaining it, he argues from their past experience. For it was when you obeyed Faith, he says, not the Law, that you received the Spirit and wrought miracles.
And here, as the Law was the subject of discussion, he moots another special point of controversy, and very opportunely and with much cogency introduces a notice of Abraham.
Ver. 6. “Even as Abraham believed God, and it was reckoned unto him for righteousness.”
Even the miracles done by themselves, he says, declare the power of Faith, but I shall attempt if you will suffer me to draw my proofs from ancient narratives also. Then, as they made great account of the Patriarch, he brings his example forward, and shows that he too was justified by Faith. And if he who was before grace, was justified by Faith, although plentiful in works, much more we. For what loss was it to him, not being under the Law? None, for his faith sufficed unto righteousness. The Law did not then exist, he says, neither does it now exist, any more than then. In disproving the need of the Law, he introduces one who was justified before the Law, lest an objection should also be made to him; for as then it was not yet given, so now, having been given, it was abrogated. And as they made much of their descent from Abraham, and feared lest, abandoning the Law, they should be considered strangers to his kin; Paul removes this fear by turning their argument against themselves, and proves that faith is especially concerned in connecting them with Abraham. He draws out this argument more at length in the Epistle to the Romans; however he urges it also here in, the words,
Ver. 7. “Know therefore, that they which be of faith, the same are sons of Abraham.”
Which he proves by ancient testimony thus:
Ver. 8. “And the Scripture, foreseeing that God would justify the Gentiles by faith, preached the Gospel beforehand unto Abraham, saying, In you shall all the nations be blessed.”
If then those were Abraham's sons, not, who were related to him by blood, but who follow his faith, for this is the meaning of the words, “In you all the nations,” it is plain that the heathen are brought into kindred with him.
Hereby too is proved another important point. It perplexed them that the Law was the older, and Faith afterwards. Now he removes this notion by showing that Faith was anterior to the Law; as is evident from Abraham's case, who was justified before the giving of the Law. He shows too that late events fell out according to prophecy; “The Scripture,” says he, “foreseeing that God would justify the Gentiles by faith, preached the Gospel beforehand unto Abraham.” Attend to this point. He Himself who gave the Law, had decreed, before He gave it, that the heathen should be justified by Faith. And he says not “revealed,” but, “preached the Gospel,” to signify that the patriarch was in joy at this method of justification, and in great desire for its accomplishment.
Further, they were possessed with another apprehension; it was written, “Cursed is every one that continues not in all things that are written in the book of the Law, to do them.” And this he removes, with great skill and prudence, turning their argument against themselves, and showing that those who relinquish the Law are not only not cursed, but blessed; and they who keep it, not only not blessed but cursed. They said that he who kept not the Law was cursed, but he proves that he who kept it was cursed, and he who kept it not, blessed. Again, they said that he who adhered to Faith alone was cursed, but he shows that he who adhered to Faith alone, is blessed. And how does he prove all this? For it is no common thing which we have promised; wherefore it is necessary to give close attention to what follows. He had already shown this, by referring to the words spoken to the Patriarch, “In you shall all nations be blessed,” at a time, that is, when Faith existed, not the Law; so he adds by way of conclusion,
Ver. 9. “So then they which be of faith are blessed with the faithful Abraham.”
Then, that they might not turn round, and object that, true it was Abraham was justified by Faith, for the Law was not then given, but what instance would be found of Faith justifying after the delivery of the Law? He addresses himself to this, and proves more than they required: namely, not only that Faith was justifying, but that the Law brought its adherents under a curse. To be sure of this, listen to the very words of the Apostle.
Ver. 10. “For as many as are of the works of the Law are under a curse.”
This is what he lays down, before proving it; and what is the proof? It is from the Law itself:—
<!--<span class="stiki"></span>-->Ver. 10, 11. “For it is written, Cursed is every one that continues not in all things that are written in the book of the Law to do them. Now that no man is justified by the Law is evident.”
For all have sinned, and are under the curse. However he does not say this yet, lest he should seem to lay it down of himself, but here again establishes his point by a text which concisely states both points; that no man has fulfilled the Law, (wherefore they are under the curse,) and, that Faith justifies. What then is the text? It is in the book of the prophet Habakkuk, “The just shall live by faith,” which not only establishes the righteousness that is of Faith, but also that there is no salvation through the Law. As no one, he says, kept the Law, but all were under the curse, on account of transgression, an easy way was provided, that from Faith, which is in itself a strong proof that no man can be justified by the Law. For the prophet says not, “The just shall live by the Law,” but, “by faith:”
Ver. 12. “And the Law is not of faith; but He that does them shall live in them.”
For the Law requires not only Faith but works also, but grace saves and justifies by Faith.
You see how he proves that they are under the curse who cleave to the Law, because it is impossible to fulfill it; next, how comes Faith to have this justifying power? For to this doctrine he already stood pledged, and now maintains it with great force of argument. The Law being too weak to lead man to righteousness, an effectual remedy was provided in Faith, which is the means of rendering that possible which was “impossible by the Law.” Now as the Scripture says, “the just shall live by faith,” thus repudiating salvation by the Law, and moreover as Abraham was justified by Faith, it is evident that its efficacy is very great. And it is also clear, that he who abides not by the Law is cursed, and that he who keeps to Faith is just. But, you may ask me, how I prove that this curse is not still of force? Abraham lived before the Law, but we, who once were subject to the yoke of bondage, have made ourselves liable to the curse; and who shall release us therefrom? Observe his ready answer to this; his former remark was sufficient; for, if a man be once justified, and has died to the Law and embraced a novel life, how can such a one be subject to the curse? However, this is not enough for him, so he begins with a fresh argument, as follows:—
Ver. 13. “Christ redeemed us from the curse of the Law, having become a curse for us: for it is written, Cursed is every one that hangs on a tree.”
Source: Commentary on Galatians (New Advent)