This know also, that in the last days perilous times shall come.

Know also this, that, in the last days, shall come dangerous times.

But this know, that in the last days difficult times shall be there;

And this know thou, that in the last days there shall come perilous times,

But of this be assured: in the last days grievous times will set in.

But be certain of this, that in the last days times of trouble will come.

And know this: that in the last days perilous times will press near.

Be sure of this, that in the last days difficult times will come.

But know this By this prediction he intended still more to sharpen his diligence; for, when matters go on to our wish, we become more careless; but necessity urges us keenly. Paul, therefore informs him, that the Church will be subject to terrible diseases, which will require in the pastors uncommon fidelity, diligence, watchfulness, prudence, and unwearied constancy; as if he enjoined Timothy to prepare for arduous and deeply anxious contests which awaited him. And hence we learn, that, so far from giving way, or being terrified, on account of any difficulties whatsoever, we ought, on the contrary. to arouse our hearts for resistance. In the last days Under "the last days," he includes the universal condition of the Christian Church. Nor does he compare his own age with ours, but, on the contrary, informs Timothy what will be the future condition of the kingdom of Christ; for many imagined some sort of condition that would be absolutely peaceful, and free from any annoyance. [1] In short, he means that there will not be, even under the gospel, such a state of perfection, that all vices shall be banished, and virtues of every kind shall flourish; and that therefore the pastors of the Christian Church will have quite as much to do with wicked and ungodly men as the prophets and godly priests had in ancient times. Hence it follows, that there is no time for idleness or for repose.

Footnotes

1 - "Why does the holy Apostle, both here and elsewhere, speak of the last days,' when he forewarns believers that they must prepare themselves, and make provision for many troubles and annoyances? It is because this fancy was so common, that matters would go much better than before; because, formerly, the prophets, when speaking of the kingdom of our Lord Jesus Christ, said that everything would be astonishingly reformed, that the world would obey God, that his majesty would be adored by the high and the low, that every mouth would sing his praise, and every knee would bow before him. In short, when we hear such promises, we think that we must be in a state of angelical holiness, now that Christ has appeared. Many concluded, in their mistaken fancy, that, since the coming of the Redeemer, nothing but the most correct virtue and modesty would ever be seen, and that everything would be so thoroughly regulated, that there would be no more vices in the world." -- Fr. Ser.

This know also - The "object" of this reference to the perilous times which were to occur, was evidently to show the necessity of using every precaution to preserve the purity of the church, from the fact that such sad scenes were to open upon it. The apostle had dwelt upon this subject in his First Epistle to Timothy 2 Tim. 4, but its importance leads him to advert to it again.
In the last days - Under the gospel dispensation; some time in that period during which the affairs of the world will be closed up; see the 1-Timothy 4:1 note, and Hebrews 1:2 note.
Perilous times shall come - Times of danger, of persecution, and of trial. On the general meaning of this passage, and the general characteristics of those times, the reader may consult the 2-Thessalonians 2:1-12 notes, and 1-Timothy 4:1-3 notes. There can be no doubt that in all these passages the apostle refers to the same events.

In the last days - This often means the days of the Messiah, and is sometimes extended in its signification to the destruction of Jerusalem, as this was properly the last days of the Jewish state. But the phrase may mean any future time, whether near or distant.

This (1) know also, that in the last days perilous times shall come.
(1) The seventh admonition: we may not hope for a Church in this world without corruption: but there will be rather great abundance of most wicked men even in the very bosom of the Church, who will nonetheless make a show and countenance of great holiness, and charity.

This know also,.... That not only men of bad principles and practices are in the churches now, as before described in the preceding chapter, but that in succeeding ages there would be worse men, if possible, and the times would be still worse; this the apostle had, and delivered by a spirit of prophecy, and informed Timothy, and others of it, that he and they might be prepared for such events, and fortified against them:
that in the last days perilous times shall come; "or hard" and difficult times to live in; not by reason of the outward calamities, as badness of trade, scarcity of provisions, the ravages of the sword, &c. but by reason of the wickedness of men, and that not of the profane world, but of professors of religion; for they are the persons afterwards described, who will make the times they live in difficult to others, to live soberly, righteously, and godly; the days will be evil, because of these evil men: or they will be "troublesome" times, very afflicting and distressing to pious minds; as the places and times, and men and customs of them were to Lot, David, Isaiah, and others: and also "dangerous" ones to the souls of men; who will be beguiled by their fair speeches, and specious pretences, to follow their pernicious ways, which will bring destruction upon them; their doctrines will eat as a gangrene, and their evil communications will corrupt good manners, before observed. And these times will be "in the last days" of the apostolic age, and onward to the end of the world: the Jews generally understand by this phrase, when used in the Old Testament, the days of the Messiah; and which are the last days of the world, in comparison of the times before the law, from Adam to Moses, and under the law, from thence to Christ; and even in the times of the apostles, at least towards the close of them, great numbers of men rose up under the Christian name, to whom the following characters well agree, as the Gnostics, and others; and who paved the way for the man of sin, the Romish antichrist, whose priests and votaries are here likewise described to the life: so that these last days may take in the general defection and apostasy of the church of Rome, as well as those times, which followed the apostles, and those which will usher in the second coming of Christ. The Ethiopic version renders it, "in the latter days will come an evil, or bad year".

Even in gospel times there would be perilous times; on account of persecution from without, still more on account of corruptions within. Men love to gratify their own lusts, more than to please God and do their duty. When every man is eager for what he can get, and anxious to keep what he has, this makes men dangerous to one another. When men do not fear God, they will not regard man. When children are disobedient to their parents, that makes the times perilous. Men are unholy and without the fear of God, because unthankful for the mercies of God. We abuse God's gifts, if we make them the food and fuel of our lusts. Times are perilous also, when parents are without natural affection to children. And when men have no rule over their own spirits, but despise that which is good and to be honoured. God is to be loved above all; but a carnal mind, full of enmity against him, prefers any thing before him, especially carnal pleasure. A form of godliness is very different from the power; from such as are found to be hypocrites, real Christians must withdraw. Such persons have been found within the outward church, in every place, and at all times. There ever have been artful men, who, by pretences and flatteries, creep into the favour and confidence of those who are too easy of belief, ignorant, and fanciful. All must be ever learning to know the Lord; but these follow every new notion, yet never seek the truth as it is in Jesus. Like the Egyptian magicians, these were men of corrupt minds, prejudiced against the truth, and found to be quite without faith. Yet though the spirit of error may be let loose for a time, Satan can deceive the nations and the churches no further, and no longer, than God will permit.

COMING EVIL DAYS: SIGNS OF EVIL ALREADY: CONTRAST IN THE DOCTRINE AND LIFE OF PAUL, WHICH TIMOTHY SHOULD FOLLOW IN ACCORDANCE WITH HIS EARLY TRAINING IN SCRIPTURE. (2Ti. 3:1-17)
also--Greek, "but."
last days--preceding Christ's second coming (2-Peter 3:3; Jde 1:18). "The latter times," 1-Timothy 4:1, refer to a period not so remote as "the last days," namely, the long days of papal and Greek anti-Christianity.
perilous--literally, "difficult times," in which it is difficult to know what is to be done: "grievous times."
shall come--Greek, "shall be imminent"; "shall come unexpectedly" [BENGEL].

In the last days. In the last ages of the world. The expression is often used of the gospel dispensation.
Perilous times. Grievous, times of distress.
For men shall be. Some of the characteristics of men in that period are given. Such men probably exist in all ages, but at the time referred to by Paul they shall be in the predominance.
Lovers of their own selves. Selfish.
Truce-breakers. "Implacable," in Revision. Those who will not make or keep peace.
Heady. Headstrong.
Lovers of pleasures. Lovers of pleasure rather than lovers of God.
Having a form of godliness. This implies that the persons described professed to be religious, worshipers of God in outward form. A godless church is described.
Denying the power. Rejecting its power. Their lives are not moulded by it.
From such turn away. This implies that some of this formal, godless religion had begun to show itself even at that time.

In the last days - The time of the gospel dispensation, commencing at the time of our Lord's death, is peculiarly styled the last days. Grievous - Troublesome and dangerous.