For if Abraham ... - This is the answer of the apostle. If Abraham was justified on the ground of his own merits, he would have reason to boast, or to claim praise. He might regard himself as the author of it, and take the praise to himself; see Romans 4:4. The inquiry, therefore, was, whether in the account of the justification of Abraham, there was to be found any such statement of a reason for self-confidence and boasting.

But not before God - In the sight of God. That is, in his recorded judgment, he had no ground of boasting on account of works. To show this, the apostle appeals at once to the Scriptures, to show that there was no such record as that Abraham could boast that he was justified by his works. As God judges right in all cases, so it follows that Abraham had no just ground of boasting, and of course that he was not justified by his own works. The sense of this verse is well expressed by Calvin. "If Abraham was justified by his works, he might boast of his own merits. But he has no ground of boasting before God. Therefore he was not justified by works."

For if Abraham were justified by works - The Jew proceeds: - I conclude, therefore, that Abraham was justified by works, or by his obedience to this law of circumcision; and, consequently, he has cause for glorying, καυχημα, to exult in something which he has done to entitle him to these blessings. Now, it is evident that he has this glorying, and consequently that he was justified by works.

Apostle. But not before God - These seem to be the apostle's words, and contain the beginning of his answer to the arguments of the Jew, as if he had said: - Allowing that Abraham might glory in being called from heathenish darkness into such marvellous light, and exult in the privileges which God had granted to him; yet this glorying was not before God as a reason why those privileges should be granted; the glorying itself being a consequence of these very privileges.

For if Abraham were justified by works,.... That Abraham was not, and could not be justified by works, is clear from hence, that if this was his case,

he hath whereof to glory; which will be allowed him before men, on account of his pious life and conversation:

but not before God; who saw all the iniquity of his heart, and was privy to all his failings and infirmities: besides, glorying before God in a man's own works, is contrary to the scheme and method of God's grace; is excluded by the doctrine of faith; nor is there any place for glorying before God but in Christ, and his righteousness: if therefore Abraham had not that of which he could glory before God, he could not be justified by works in his sight: but does not the Apostle James say that he was justified by works, James 2:21? To this it may be replied, that the two apostles, Paul and James, are not speaking of the same thing: Paul speaks of justification before God, James of justification before men; Paul speaks of the justification of the person, James of the justification of a man's cause, as the truth of his faith, or the uprightness of his conduct; Paul speaks of works, as the causes of justification, James of them as the effects and evidences of faith; Paul had to do with the self-righteous, who trusted in their own works for justification, James with Gnostics, who slighted and neglected the performance of them. These things considered, they will be found to agree.

For

Supply, Abraham found nothing according to the flesh; for, if he did, he has something to boast of.

By works (ἐξ ἔργων)

Lit., out of works. In speaking of the relation of works to justification, Paul never uses διά by or through, but ἐκ out of; works being regarded by the Jew as the meritorious source of salvation.

{2} For if Abraham were justified by works, he hath whereof to glory; but not before God.

(2) A preventing of an objection. Abraham may well rejoice and extol himself among men, but not with God.

4:2 Hath whereof to glory. If Abraham was justified by his own righteous works, he would have ground for glorying in himself.

4:2 The meaning is, If Abraham had been justified by works, he would have had room to glory. But he had not room to glory. Therefore he was not justified by works.

[1] works

Cf. Jas 2:24. These are two aspects of one truth. Paul speaks of that which justifies man before God, viz.: faith alone, wholly apart from works; James of the proof before men, that he who professes to have justifying faith really has it. Paul speaks of what God sees--faith; James of what men see--works, as the visible evidence of faith. Paul draws his illustration from Gen 15:6 James from Gen 22:1-19. James' key phrase is "ye see" Jas 2:24 for men cannot see faith except as manifested through works.

2. For if Abraham were justified by works, he hath whereof to glory; but not before God-"If works were the ground of Abraham's justification, he would have matter for boasting; but as it is perfectly certain that he hath none in the sight of God, it follows that Abraham could not have been justified by works." And to this agree the words of Scripture.

4:1-12 To meet the views of the Jews, the apostle first refers to the example of Abraham, in whom the Jews gloried as their most renowned forefather. However exalted in various respects, he had nothing to boast in the presence of God, being saved by grace, through faith, even as others. Without noticing the years which passed before his call, and the failures at times in his obedience, and even in his faith, it was expressly stated in Scripture that he believed God, and it was counted to him for righteousness, Ge 15:6. From this example it is observed, that if any man could work the full measure required by the law, the reward must be reckoned as a debt, which evidently was not the case even of Abraham, seeing faith was reckoned to him for righteousness. When believers are justified by faith, their faith being counted for righteousness, their faith does not justify them as a part, small or great, of their righteousness; but as the appointed means of uniting them to Him who has chosen as the name whereby he shall be called, the Lord our Righteousness. Pardoned people are the only blessed people. It clearly appears from the Scripture, that Abraham was justified several years before his circumcision. It is, therefore, plain that this rite was not necessary in order to justification. It was a sign of the original corruption of human nature. And it was such a sign as was also an outward seal, appointed not only to confirm God's promises to him and to his seed, and their obligation to be the Lord's, but likewise to assure him of his being already a real partaker of the righteousness of faith. Thus Abraham was the spiritual forefather of all believers, who walked after the example of his obedient faith. The seal of the Holy Spirit in our sanctification, making us new creatures, is the inward evidence of the righteousness of faith.