Matthew 24:19

Or because that will not be a time of showing pity, neither upon them who are with child, nor upon them who are suckling, nor upon their infants.

That which is said, Woe unto them that are with child, and to them that give suck, is not to be taken literally as an admonition to women pregnant, but as a description of souls burdened with the weight of sin, that neither in the house, nor in the field, may escape the storm of the wrath that is in store for them. Woe also to those that are being suckled; the weak souls, that is, who are being brought to the knowledge of God as by milk, to whom it shall be woe, because they are too laden to fly, and too inexperienced to resist Antichrist, having neither escaped sin, nor partaken of the food of true bread.

"Woe unto them that are with child, and to them that give suck," to the one because of their greater inertness, and because they cannot flee easily, being weighed down by the burden of their pregnancy; to the other, because they are held by the tie of feeling for their children, and cannot save their sucklings. For money it is a light thing to despise, and an easy thing to provide, and clothes; but the bonds of nature how could any one escape? how could the pregnant woman become active? how could she that gives suck be able to overlook that which she had borne?

(Aug. Serm. App. 75. 2.) Or, They that are with child, are they who covet what belongs to others; they that give suck, are they who have already forcibly taken that which they coveted; to them shall be woe in the day of judgment. Pray ye that your flight be not in the winter, or on the sabbath day; ...

Mystically; In the holy place of the Scriptures, both Old and New Testament, Antichrist, that is, false word, has often stood; let those who see this flee from the Judæa of the letter to the high mountains of truth. And whoso has been found to have gone up to the house-top of the word, and to be standing upon its summit, let him not come down thence as though he would fetch any thing out of his house. And if he be in the field in which the treasure is hid, and return thence to his house, he will run into the temptation of a false word; but especially if he have stripped off his old garment, that is, the old man, and should have returned again to take it up. Then the soul, as it were with child by the word, not having yet brought forth, is liable to a woe; for it casts that which it had conceived, and loses that hope which is in the acts of truth; and the same also if the word has been brought forth perfect and entire, but not having yet attained sufficient growth. Let them that flee to the mountains pray that their flight be not in the winter or on the sabbath-day, because in the serenity of a settled spirit they may reach the way of salvation, but if the winter overtake them they fall amongst those whom they would fly from. And there be some who rest from evil works, but do not good works; be your flight then not on such sabbath when a man rests from good works, for no man is easily overcome in times of peril from false doctrines, except he is unprovided with good works. But what sorer affliction is there than to see our brethren deceived, and to feel one's self shaken and terrified? Those days mean the precepts and dogmas of truth; and all interpretations coming of science falsely so called (1 Tim. 6:20.) are so many additions to those days, which God shortens by those whom He wills.