For, lo, the days will come. He threatens, that a calamity which is not usual, but fearful and unheard of, is at hand, in which will be perceived, at a glance, the vengeance of God. As if he had said, that this nation will not be carried away by a single or ordinary kind of destruction, but that it will perish under a mass of numerous and great calamities, so that it would be much more desirable that the mountains should fall upon them, and crush them, or that the earth should open and swallow them up, than that they should pine away amidst the cruel torments of a lingering destruction. Nor did those threatenings fall to the ground without effect, but this thunder of words was surpassed by the awful result, as is evident from Josephus. And as the wish to be crushed by the mountains, and the cursing of their children, were expressive of the lowest despair, Christ taught by these words that the Jews would at length feel that they had made war, not with a mortal man, but with God. Thus shall the enemies of God reap the just reward of their impious rage, when they who formerly dared even to attack heaven, shall in vain desire to employ the earth as a shield against his vengeance.

For behold the days are coming,.... The time is hastening on; yet a little while, a few years more, and such times of distress will be:
in the which they shall say; or it shall be commonly said; it will be in every one's mouth:
blessed are the barren, and the wombs that never bare, and the paps that never gave suck; that is, happy wilt those persons be who have no children, to be starved to death, for want of bread; or to be killed with the sword before their eyes, which must greatly enhance their own miseries. Dr. Hammond thinks, that one passage particularly is referred to, related by Josephus; that when Titus had so closely encompassed the city with a wall, that there was no coming out for provisions, upon which a sore famine commenced, so that they fed on dung and dirt, and shoes, and girdles, one rich and noble woman, whose name was Mary, the daughter of Eleazar, being stripped of all she had, by the seditious, killed her own child, and dressed it, and ate part of it; and the other part being found by the soldiers that broke in upon her, the news of this shocking fact was spread all over the city, and every one looked with horror upon it, and with the same compassion, as if they had done it themselves: and then might those words be said, "blessed are the barren, and the wombs that never bare", &c. who, though starving themselves, were under no temptation to do such a detestable action.