4 for there did come in unobserved certain men, long ago having been written beforehand to this judgment, impious, the grace of our God perverting to lasciviousness, and our only Master, God, and Lord—Jesus Christ—denying, 5 and to remind you I intend, you knowing once this, that the Lord, a people out of the land of Egypt having saved, again those who did not believe did destroy; 6 messengers also, those who did not keep their own principality, but did leave their proper dwelling, to a judgment of a great day, in bonds everlasting, under darkness He hath kept, 7 as Sodom and Gomorrah, and the cities around them, in like manner to these, having given themselves to whoredom, and gone after other flesh, have been set before—an example, of fire age-during, justice suffering.

8 In like manner, nevertheless, those dreaming also the flesh indeed do defile, and lordship they put away, and dignities they speak evil of, 9 yet Michael, the chief messenger, when, with the devil contending, he was disputing about the body of Moses, did not dare to bring up an evil-speaking judgment, but said, 'The Lord rebuke thee!' 10 and these, as many things indeed as they have not known, they speak evil of; and as many things as naturally (as the irrational beasts) they understand, in these they are corrupted; 11 wo to them! because in the way of Cain they did go on, and to the deceit of Balaam for reward they did rush, and in the gainsaying of Korah they did perish. 12 These are in your love-feasts craggy rocks; feasting together with you, without fear shepherding themselves; clouds without water, by winds carried about; trees autumnal, without fruit, twice dead, rooted up; 13 wild waves of a sea, foaming out their own shames; stars going astray, to whom the gloom of the darkness to the age hath been kept.

Matthew Henry's Commentary on Jude 1:4-13

Commentary on Jude 1:1-4

(Read Jude 1:1-4)

Christians are called out of the world, from the evil spirit and temper of it; called above the world, to higher and better things, to heaven, things unseen and eternal; called from sin to Christ, from vanity to seriousness, from uncleanness to holiness; and this according to the Divine purpose and grace. If sanctified and glorified, all the honour and glory must be ascribed to God, and to him alone. As it is God who begins the work of grace in the souls of men, so it is he who carries it on, and perfects it. Let us not trust in ourselves, nor in our stock of grace already received, but in him, and in him alone. The mercy of God is the spring and fountain of all the good we have or hope for; mercy, not only to the miserable, but to the guilty. Next to mercy is peace, which we have from the sense of having obtained mercy. From peace springs love; Christ's love to us, our love to him, and our brotherly love to one another. The apostle prays, not that Christians may be content with a little; but that their souls and societies may be full of these things. None are shut out from gospel offers and invitations, but those who obstinately and wickedly shut themselves out. But the application is to all believers, and only to such. It is to the weak as well as to the strong. Those who have received the doctrine of this common salvation, must contend for it, earnestly, not furiously. Lying for the truth is bad; scolding for it is not better. Those who have received the truth must contend for it, as the apostles did; by suffering with patience and courage for it, not by making others suffer if they will not embrace every notion we call faith, or important. We ought to contend earnestly for the faith, in opposition to those who would corrupt or deprave it; who creep in unawares; who glide in like serpents. And those are the worst of the ungodly, who take encouragement to sin boldly, because the grace of God has abounded, and still abounds so wonderfully, and who are hardened by the extent and fulness of gospel grace, the design of which is to deliver men from sin, and bring them unto God.

Commentary on Jude 1:5-7

(Read Jude 1:5-7)

Outward privileges, profession, and apparent conversion, could not secure those from the vengeance of God, who turned aside in unbelief and disobedience. The destruction of the unbelieving Israelites in the wilderness, shows that none ought to presume on their privileges. They had miracles as their daily bread; yet even they perished in unbelief. A great number of the angels were not pleased with the stations God allotted to them; pride was the main and direct cause or occasion of their fall. The fallen angels are kept to the judgment of the great day; and shall fallen men escape it? Surely not. Consider this in due time. The destruction of Sodom is a loud warning to all, to take heed of, and flee from fleshly lusts that war against the soul, Job 15:16.

Commentary on Jude 1:8-16

(Read Jude 1:8-16)

False teachers are dreamers; they greatly defile and grievously wound the soul. These teachers are of a disturbed mind and a seditious spirit; forgetting that the powers that be, are ordained of God, Romans 13:1. As to the contest about the body of Moses, it appears that Satan wished to make the place of his burial known to the Israelites, in order to tempt them to worship him, but he was prevented, and vented his rage in desperate blasphemy. This should remind all who dispute never to bring railing charges. Also learn hence, that we ought to defend those whom God owns. It is hard, if not impossible, to find any enemies to the Christian religion, who did not, and do not, live in open or secret contradiction to the principles of natural religion. Such are here compared to brute beasts, though they often boast of themselves as the wisest of mankind. They corrupt themselves in the things most open and plain. The fault lies, not in their understandings, but in their depraved wills, and their disordered appetites and affections. It is a great reproach, though unjust to religion, when those who profess it are opposed to it in heart and life. The Lord will remedy this in his time and way; not in men's blind way of plucking up the wheat with the tares. It is sad when men begin in the Spirit, and end in the flesh. Twice dead; they had been once dead in their natural, fallen state; but now they are dead again by the evident proofs of their hypocrisy. Dead trees, why cumber they the ground! Away with them to the fire. Raging waves are a terror to sailing passengers; but when they get into port, the noise and terror are ended. False teachers are to expect the worst punishments in this world and in that to come. They glare like meteors, or falling stars, and then sink into the blackness of darkness for ever. We have no mention of the prophecy of Enoch in any other part or place of Scripture; yet one plain text of Scripture, proves any point we are to believe. We find from this, that Christ's coming to judge was prophesied of, as early as the times before the flood. The Lord cometh: what a glorious time will that be! Notice how often the word "ungodly" is repeated. Many now do not at all refer to the terms godly, or ungodly, unless it be to mock at even the words; but it is not so in the language taught us by the Holy Ghost. Hard speeches of one another, especially if ill-grounded, will certainly come into account at the day of judgment. These evil men and seducers are angry at every thing that happens, and never pleased with their own state and condition. Their will and their fancy, are their only rule and law. Those who please their sinful appetites, are most prone to yield to ungovernable passions. The men of God, from the beginning of the world, have declared the doom denounced on them. Such let us avoid. We are to follow men only as they follow Christ.