There is indeed no difference, etc. He urges on all, without exception, the necessity of seeking righteousness in Christ; as though he had said, "There is no other way of attaining righteousness; for some cannot be justified in this and others in that way; but all must alike be justified by faith, because all are sinners, and therefore have nothing for which they can glory before God." But he takes as granted that every one, conscious of his sin, when he comes before the tribunal of God, is confounded and lost under a sense of his own shame; so that no sinner can bear the presence of God, as we see an example in the case of Adam. He again brings forward a reason taken from the opposite side; and hence we must notice what follows. Since we are all sinners, Paul concludes, that we are deficient in, or destitute of, the praise due to righteousness. There is then, according to what he teaches, no righteousness but what is perfect and absolute. Were there indeed such a thing as half righteousness, it would yet be necessary to deprive the sinner entirely of all glory: and hereby the figment of partial righteousness, as they call it, is sufficiently confuted; for if it were true that we are justified in part by works, and in part by grace, this argument of Paul would be of no force -- that all are deprived of the glory of God because they are sinners. It is then certain, there is no righteousness where there is sin, until Christ removes the curse; and this very thing is what is said in Galatians 3:10, that all who are under the law are exposed to the curse, and that we are delivered from it through the kindness of Christ. The glory of God I take to mean the approbation of God, as in John 12:43, where it is said, that "they loved the glory of men more than the glory of God." And thus he summons us from the applause of a human court to the tribunal of heaven. [1]

Footnotes

1 - Beza gives another view, that the verb husterountai, refers to those who run a race, and reach not the goal, and lose the prize. The "glory of God" is the happiness which he bestows; (see Romans 5:2;) of this all mankind come short, however much some seemed to labor for it; and it can only be attained by faith. Pareus, Locke, and Whitby give the same view. Others consider it to be "the glory" due to God, -- that all come short of rendering him the service and honor which he justly demands and requires. So Doddridge, Scott, and Chalmers But Melancthon, Grotius and Macknight seemed to have agreed with Calvin in regarding "glory" here as the praise or approbation that comes from God. The second view seems the most appropriate, according to what is said in Romans 1:21, "they glorified him not as God." -- Ed.

For all have sinned - This was the point which he had fully established in the discussion in these chapters.
Have come short - Greek, "Are deficient in regard to;" are lacking, etc. Here it means, that they had failed to obtain, or were destitute of.
The glory of God - The praise or approbation of God. They had sought to be justified, or approved, by God; but all had failed. Their works of the Law had not secured his approbation; and they were therefore under condemnation. The word "glory" (δόξα doxa) is often used in the sense of praise, or approbation, John 5:41, John 5:44; John 7:18; John 8:50, John 8:54; John 12:43.

For all have sinned : - And consequently are equally helpless and guilty; and, as God is no respecter of persons, all human creatures being equally his offspring, and there being no reason why one should be preferred before another, therefore his endless mercy has embraced All.
And come short of the glory of God - και υστερουνται της δοξης του θεου These words have been variously translated. Failed of attaining the glory of God: Have not been able to bring glory to God: Stand in need of the glory, that is, the mercy of God. The simple meaning seems to be this: that all have sinned, and none can enjoy God's glory but they that are holy; consequently both Jews and Gentiles have failed in their endeavors to attain it, as, by the works of any law, no human being can be justified.

For all have sinned, and come short of the (t) glory of God;
(t) By the "glory of God" is meant that mark which we all aim for, that is, everlasting life, which consists in our being made partakers of the glory of God.

For all have sinned,.... This is the general character of all mankind; all have sinned in Adam, are guilty by his sin, polluted with it, and condemned for it; all are sinners in themselves, and by their own actual transgressions; this is the case of the whole world, and of all the men in it; not only of the Gentiles, but of the Jews, and the more righteous among them: hence there is no difference in the state and condition of men by nature; nor is there any reason from and in themselves, why God saves one and not another; nor any room to despair of the grace and righteousness of Christ, on account of persons being, in their own view, the worst of sinners:
and hence it is, that they are all
come short of the glory of God; either of glorifying of God; man was made for this purpose, and was capable of it, though now through sin incapable; and it is only by the grace of God that he is enabled to do it: or of glorying: before him; sin has made him infamous, and is his shame; by it he has forfeited all external favours, and has nothing of his own to glory in; his moral righteousness is no foundation for boasting, especially before God: or of having glory from God; the most pure and perfect creature does not of itself deserve any glory and praise from God; good men, in a way of grace, will have praise of God; but sinners can never expect any on their own account: or of the glorious grace of God, as sanctifying and pardoning grace, and particularly the grace of a justifying righteousness; man has no righteousness, nor can he work out one; nor will his own avail, he wants a better than that: or of eternal glory; which may be called the glory of God, because it is of his preparing, what he calls persons to by his grace, and which of his own free grace he bestows upon them, and will chiefly lie in the enjoyment of him; now this is represented sometimes as a prize, which is run for, and pressed after; but men, through sinning, come short of it, and must of themselves do so for ever: or rather of the image of God in man, who is called "the image and glory of God", 1-Corinthians 11:7, which consisted externally in government over the creatures; internally, in righteousness and holiness, in wisdom and knowledge, in the bias of his mind to that which is good, and in power to perform it; of all which he is come short, or deprived by sinning.

for all have sinned--Though men differ greatly in the nature and extent of their sinfulness, there is absolutely no difference between the best and the worst of men, in the fact that "all have sinned," and so underlie the wrath of God.
and come short of the glory--or "praise"
of God--that is, "have failed to earn His approbation" (compare John 12:43, Greek). So the best interpreters.

For all have sinned - In Adam, and in their own persons; by a sinful nature, sinful tempers, and sinful actions. And are fallen short of the glory of God - The supreme end of man; short of his image on earth, and the enjoyment of him in heaven.