Of which I tell you before. By this awful threatening he intended not only to alarm the Galatians, but likewise to glance indirectly at the false apostles, who had laid aside the far more valuable instruction, and spent their time in disputing about ceremonies. He instructs us, by his example, to press those exhortations and threatenings, agreeably to the words of the prophet, "Cry aloud, spare not; proclaim to my people their sins." (Isaiah 58:1) What can be conceived more dreadful than that men should walk after the flesh, and shut themselves out from the kingdom of God? Who will dare to treat lightly the "abominable things which God hates?" (Jeremiah 44:4.) But in this way, we shall be told, all are cut off from the hope of salvation; for who is there that is not chargeable with some of those sins? I reply, Paul does not threaten that all who have sinned, but that all who remain impenitent, shall be excluded from the kingdom of God. The saints themselves often fall into grievous sins, but they return to the path of righteousness, "that which they do they allow not," (Romans 7:15,) and therefore they are not included in this catalogue. All threatenings of the judgments of God call us to repentance. They are accompanied by a promise that those who repent will obtain forgiveness; but if we continue obstinate, they remain as a testimony from heaven against us. They who do such things shall not inherit the kingdom of God. The word kleronomein signifies to possess by hereditary right; for by no right but that of adoption, as we have seen in other passages, do we obtain eternal life.

Envyings - see the note at 2-Corinthians 12:20.
Revellings - 2-Corinthians 12:20, note; Romans 13:13, note.
And such like - This class of evils, without attempting to specify all.
Of which I tell you before - In regard to which I forewarn you.
As I have also told you in time past - When he was with them.
Shall not inherit the kingdom of God - Cannot possibly be saved; see the notes at 1-Corinthians 6:9-11. In regard to this passage, we may remark:
(1) That it furnishes the most striking and unanswerable proof of human depravity. Paul represents these things as "the works of the flesh," the works of the unrenewed nature of man. They are such as human nature, when left to itself, everywhere produces. The world shows that such is the fact; and we cannot but ask, is a nature producing this to be regarded as pure? Is man an unfallen being? Can he save himself? Does he need no Saviour?
(2) this passage is full of fearful admonition to those who indulge in any or all of these vices. Paul, inspired of God, has solemnly declared, that such cannot be saved. They cannot enter into the kingdom of heaven as they are. Nor is it desirable that they should. What would heaven be if filled up with adulterers, and fornicators, and idolaters, with the proud and envious, and with murderers, and drunkards? To call such a place heaven, would be an abuse of the word. No one could wish to dwell there; and such people cannot enter into heaven.
(3) the human heart must be changed, or man cannot be saved. This follows of course. If such is its tendency, then there is a necessity for such a change as that in regeneration, in order that man may be happy and be saved.
(4) we should rejoice that such people cannot, with their present characters, be admitted to heaven. We should rejoice that there is one world where these vices are unknown, a world of perfect and eternal purity. When we look at the earth; when we see how these vices prevail; when we reflect that every land is polluted, and that we cannot traverse a continent or an island, visit a nook or corner of the earth, dwell in any city or town, where these vices do not exist, O how refreshing and invigorating is it to look forward to a pure heaven! How cheering the thought that there is one world where these vices are unknown; one world, all whose ample plains may be traversed, and the note of blasphemy shall never fall on the ear; one world, where virtue shall be safe from the arts of the seducer; one world where we may forever dwell, and not one reeling and staggering drunkard shall ever be seen; where there shall be not one family in want and tears from the vice of its unfaithful head! With what joy should we look forward to that world! With what ardor should we pant that it may be our own!

Envyings - Φθονοι· "Pain felt, and malignity conceived, at the sight of excellence or happiness." A passion the most base and the least curable of all that disgrace or degrade the fallen soul. See on Romans 13:13 (note)
Murders - Φονοι· Similarity of sound to the preceding seems to have suggested the word in this association; it is wanting in several MSS. Murder signifies the destruction of human life; and as he who hates his brother in his heart is ready to take away his life, so he is called a murderer. After all the casuistry of man, it does not appear that the right of taking away a human life on any pretense, except for the crime of murder belongs to any but the Maker and Judge of all men.
Drunkenness - Μεθαι· Taking more wine or any kind of inebriating liquor than is necessary for health; whatever unfits for public, domestic, or spiritual duties; even the cares of the world, when they intoxicate the mind. See on Romans 13:13 (note).
Revellings - Κωμοι· Lascivious feastings, with obscene songs, music, etc. See on Romans 13:13 (note).
And such like - Και τα ὁμοια τουτοις· All that proceeds from the evil passions of a fallen spirit, besides those above specified; and all that the law of God specifies and condemns.
Of the which I tell you before - When I first preached the Gospel to you.
As I have also told you in time past - When I paid my second visit to you; for the apostle did visit them twice. See Acts 16:6; Acts 18:23; and see preface.
Shall not inherit - They are not children of God, and therefore cannot inherit the kingdom which belongs only to the children of the Divine family.

Envyings..... Uneasy distressing tortures of the mind, grieving at the good of others, that any should be in an equal, or in a better condition than themselves:
murders, destroying of men's lives, which is often the consequence of the above evils:
drunkenness; excess in drinking of wine or strong drink, whereby the stomach is overcharged, the mind is intoxicated, and the body enfeebled and unable to perform its office; this is often the source of many, or all of the works of the flesh before mentioned:
revellings; excess in feed, nocturnal riotings in eating, drinking, dancing, singing, chambering and wantonness. The Syriac version renders it, "lascivious singing"; and the Arabic version, "songs" which are a part of the nightly revels: and such like which are of the same nature and kind; so the apostle shuts up the account, it being too tedious to give an enumeration of all the works of the flesh; nor was it necessary, judgment may be made of the rest by these; nor might it be so proper, since the carnal heart is but the more pleased with, and irritated by, the mention of evil things:
of the which I tell you before: before the judge comes and the awful judgment proceeds, when these will all be made manifest, and every man will be judged according to his works: this the apostle did, as putting them in mind of the evil nature of these things, and assuring them of the bad consequences that would follow, if grace prevented not:
as I have also told you in time past; when he first preached among them, and warned them to flee from the wrath to come; he then laid before them the evil nature of these things, the dreadful effects of them, and showed that there was no salvation from them, but by Christ:
and that they which do such things, shall not inherit the kingdom of God; by which is meant the heavenly glory, called a "kingdom", because of the grandeur and magnificence of that state; and "of God", because it is of his preparing and giving, what he calls his own to by his grace, and puts them into the possession of and where he reigns and will reign for ever, and show forth the glory of his majesty: this is possessed in way of inheritance, which shows it to be a bequest of our heavenly Father's, a free grace gift of his, and not to be obtained by the works of the law, or merits of men; but what belongs, and is peculiar to the children of God, who are so by adopting grace: now they that do such works of the flesh as before enumerated; that is, that live in the commission of these things, whose whole lives are employed in such work, living and dying in such a state, without repentance towards God and faith in Christ, shall never enjoy eternal life and happiness; though such who have done these things, being brought to a sense of them, and to the blood and righteousness of Christ for pardon and justification, for life and salvation; such, notwithstanding the works of the flesh done by them, shall, through the free grace of God, and the propitiatory sacrifice of Christ, inherit the kingdom and glory of God.

tell . . . before--namely, before the event.
I . . . told you in time past--when I was with you.
you--who, though maintaining justification by the law, are careless about keeping the law (Romans 2:21-23).
not inherit . . . kingdom of God-- (1-Corinthians 6:9-10; Ephesians 5:5).

Revellings - Luxurious entertainments. Some of the works here mentioned are wrought principally, if not entirely, in the mind; and yet they are called "works of the flesh." Hence it is clear, the apostle does not by "the flesh" mean the body, or sensual appetites and inclinations only, but the corruption of human nature, as it spreads through all the powers of the soul, as well as all the members of the body. Of which I tell you before - Before the event, I forewarn you.