Verse 10. But the day of the Lord. The day of the Lord Jesus. That is, the day in which he will be manifested. It is called his day, because he will then be the grand and prominent object as the Judge of all. Comp. Lu 17:27.

Will come as a thief in the night. Unexpectedly; suddenly. See Barnes "1 Th 5:2".

In the which the heavens shall pass away with a great noise. That is, what seems to us to be the heavens. It cannot mean that the holy abode where God dwells will pass away; nor need we suppose that this declaration extends to the starry worlds and systems as disclosed by the modern astronomy. The word is doubtless used in a popular sense -- that is, as things appear to us; and the fair interpretation of the passage would demand only such a change as would occur by the destruction of this world by fire. If a conflagration should take place, embracing the earth and its surrounding atmosphere, all the phenomena would occur which are here described; and, if this would be so, then this is all that can be proved to be meant by the passage. Such a destruction of the elements could not occur without "a great noise."

And the elements shall melt with fervent heat. Gr., "the elements being burned, or burning, (kausoumena,) shall be dissolved." The idea is, that the cause of their being "dissolved" shall be fire; or that there will be a conflagration extending to what are here called the "elements," that shall produce the effects here described by the word "dissolved." There has been much difference of opinion in regard to the meaning of the word here rendered elements, (stoiceia.) The word occurs in the New Testament only in the following places: Ga 4:3,9; 2 Pe 3:10,12, in which it is rendered elements; Col 2:8,20, in which it is rendered rudiments; and in Heb 5:12, where it is tendered principles. For the general meaning of the word, See Barnes "Gal 4:3".

The word denotes the rudiments of anything; the minute parts or portions of which anything is composed, or which constitutes the simple portions out of which anything grows, or of which it is compounded. Here it would properly denote the component parts of the material world; or those which enter into its composition, and of which it is made up. It is not to be supposed that the apostle used the term with the same exact signification with which a chemist would use it now, but in accordance with the popular use of the term in his day. In all ages, and in all languages, some such word, with more or less of scientific accuracy, has been employed to denote the primary materials out of which others were formed, just as, in most languages, there have been characters or letters to denote the elementary sounds of which language is composed. The ancients in general supposed that the elements out of which all things were formed were four -- air, earth, fire, and water. Modern science has entirely overturned this theory, and has shown that these, so far from being simple elements, are themselves compounds; but the tendency of modern science is still to show that the elements of all things are in fact few in number. The word, as here used by Peter, would refer to the elements of things as then understood in a popular sense; it would now not be an improper word to be applied to the few elements of which all things are composed, as disclosed by modern chemistry. In either case the use of the word would be correct. Whether applied to the one or the other, science has shown that all are capable of combustion. Water, in its component parts, is inflammable in a high degree; and even the diamond has been shown to be combustible. The idea contained in the word "dissolved," is, properly, only the change which heat produces. Heat changes the forms of things; dissolves them into their elements; dissipates those which were solid by driving them off into gases, and produces new compounds, but it annihilates nothing. It could not be demonstrated from this phrase that the world would be annihilated by fire; it could be proved only that it will undergo important changes. So far as the action of fire is concerned, the form of the earth may pass away, and its aspect be changed; but unless the direct power which created it interposes to annihilate it, the matter which now composes it will still be in existence.

The earth also, and the works that are therein, shall be burned up.

That is, whether they are the works of God or man -- the whole vegetable and animal creation, and all the towers, the towns, the palaces, the productions of genius, the paintings, the statuary, the books, which man has made. \-

"The cloud-capp'd towers, the gorgeous palaces,

The solemn temples, the great globe itself,

And all that it inherits, shall disrobe,

And, like the baseless fabric of a vision,

Leave not one wreck behind." \- The word rendered "burned up," like the word just before used and rendered fervent heat -- a word of the same origin, but here intensive -- means that they will undergo such a change as fire will produce; not, necessarily, that the matter composing them will be annihilated. If the matter composing the earth is ever to be destroyed entirely, it must be by the immediate power of God, for only He who created can destroy. There is not the least evidence that a particle of matter originally made has been annihilated since the world began; and there are no fires so intense, no chemical powers so mighty, as to cause a particle of matter to cease wholly to be. So far as the power of man is concerned, and so far as one portion of matter can prey on another, matter is as imperishable as mind, and neither can be destroyed unless God destroys it. Whether it is his purpose to annihilate any portion of the matter which he has made, does not appear from his word; but it is clear that he intends that the universe shall undergo important changes. As to the possibility or probability of such a destruction by fire as is here predicted, no one can have any doubt who is acquainted with the disclosures of modern science in regard to the internal structure of the earth. Even the ancient philosophers, from some cause, supposed that the earth would yet be destroyed by fire, (See Barnes "2 Pe 3:7; ) and modern science has made it probable that the interior of the earth is a melted and intensely heated mass of burning materials; that the habitable world is but a comparatively thin crust or shell over those internal fires; that earthquakes are caused by the vapours engendered by that heated mass whet, water comes in contact with it; and that volcanoes are but openings and vent-holes through which those internal flames make their way to the surface. Whether these fires will everywhere make their way to the surface, and produce an universal conflagration, perhaps could not be determined by science; but no one can doubt that the simple command of God would be all that is necessary to pour those burning floods over the earth, as he once caused the waters to roll over every mountain and through every valley. As to the question whether it is probable that such a change produced by fire, and bringing the present order of things to a close, will occur, it may be remarked farther, that there is reason to believe that such changes are in fact taking place in other worlds. "During the last two or three centuries, upwards of thirteen fixed stars have disappeared. One of them, situated in the northern hemisphere, presented a peculiar brilliancy, and was so bright as to be seen by the naked eye at mid-day. It seemed to be on fire, appearing at first of a dazzling white, then of a reddish yellow, and lastly of an ashy pale colour. La Place supposes that it was burned up, as it has never been seen since. The conflagration was visible about sixteen months." The well-known astronomer, Von Littrow, in the section of his work on "New and Missing Stars," (entitled Die Wunder der Himmels oder Gemeinfassliche Darstellung der Weltsystems, Stuttgard, 1843, & 227,) observes: "Great as may be the revolutions which take place on the surface of those fixed stars, which are subject to this alternation of light, what entirely different changes may those others have experienced, which in regions of the firmament where no star had ever been before, appeared to blaze up in clear flames, and then to disappear, perhaps for ever." He then gives a brief history of those stars which have excited the particular attention of astronomers. "In the year 1572, on the 11th of November," says he, "Tycho, on passing from his chemical laboratory to the observatory, through the court of his house, observed in the constellation Cassiopeia, at a place where before he had only seen very small stars, a new star of uncommon magnitude. It was so bright that it surpassed even Jupiter and Venus in splendour, and was visible even in the day-time. During the whole time in which it was visible, Tycho could observe no parallax or change of position. At the end of the year, however, it gradually diminished; and at length, in March 1574, sixteen months after its discovery, entirely disappeared, since which all traces of it have been lost. When it first appeared, its light was of a dazzling white colour; in January 1573, two months after its reviving, it became yellowish; in a few months it assumed a reddish hue, like Mars or Aldebaran; and in the beginning of the year 1574, two or three months before its total disappearance, it glimmered only with a gray or lead-coloured light, similar to that of Saturn." See Bibliotheca Sacra, III, p.181. If such things occur in other worlds, there is nothing improbable or absurd in the supposition that they may yet occur on the earth.

{d} "thief in the night" Mt 24:42,43; Re 16:15

{e} "shall pass away" Ps 102:26; Isa 51:6; Re 20:11

{+} "fervent heat" "Great"