Lk. 21:28. When these things begin to come to pass, then look up, and lift up your heads; for your redemption draweth nigh.
Just as the first coming of the Lord was for the recreation and regeneration of our souls, so the second will be for the regeneration of our bodies. Since the souls died first, through disobedience, while the bodies actually underwent death nine hundred years after the disobedience, they too are regenerated and improved in sequence: the souls through the first coming, and the bodies through the second. Therefore the Lord also says: when these things begin to come to pass, you who are weighed down by corruption, stand upright and enjoy freedom. For your redemption draws near, that is, the complete liberation of both, that is, of soul and body. The preposition, it seems, precisely indicates the complete deliverance from corruption, which the body too will then receive, by the grace of the Lord who abolishes the last enemy — death (1 Cor. 15:26, 53, 57). For He abolished principalities and powers and redeemed the soul. There still remained death, which fed upon our bodies; its abolition will be the cause of our freedom and redemption. Upon the fulfillment of this, the Kingdom of God will come at once.
Lk. 21:29. And He told them a parable: Look at the fig tree and all the trees:
Lk. 21:30. When they are already budding, seeing this, you know of yourselves that summer is now near.
Lk. 21:31. So also, when you see these things coming to pass, know that the Kingdom of God is near.
As the fig tree, when its leaves unfold, indicates the approach of summer, so too the appearance of these signs and the transformation of the universe serve as an indication that "summer" is coming, that is, the Kingdom of God, which for the righteous arrives precisely like summer after winter and storm. Meanwhile, for sinners, winter and storm will then set in. For they consider the present age to be summer, while the age to come is for them a storm.
Lk. 21:32. Truly I say to you: this generation shall not pass away until all these things come to pass;
"Truly I say to you: this generation shall not pass away until all these things come to pass." By "generation" He does not mean those who were living at that time, but all the generations of believers. For Scripture sometimes calls "generation" also those who are alike in character, for example: "This is the generation of those who seek Him" (Ps. 24:6).
Lk. 21:33. Heaven and earth shall pass away, but My words shall not pass away.
Since He said that there would be commotions and wars, and changes both in the elements and in things themselves, lest anyone should come to think that perhaps Christianity too might someday be overthrown, He says: no! this generation, that is, the generation of Christians, shall never pass away. Heaven and earth shall change, but My words and My Gospel shall not be overthrown, but shall abide forever, even if everything were shaken, and faith in Me shall not fail. From this it is also evident that He prefers the Church to all creation: for creation shall change, but of the Church of the faithful, as well as of His words and Gospel, nothing shall perish.
Lk. 21:34. But take heed to yourselves, lest your hearts be weighed down with carousing and drunkenness and cares of this life,
You, he says, have heard about the horrors and commotions. All of them sensibly prefigure those calamities that will befall sinners. But against these misfortunes there is a powerful and counteracting remedy – prayer and attentiveness to oneself. For constant readiness and expectation of the end can overcome all of this. And you will have it on this condition, he says, if you are watchful and your hearts are not weighed down with "carousing and drunkenness, and the cares of this life."
Lk. 21:34. and that that day may not overtake you suddenly,
Lk. 21:35. For it will come as a snare upon all who dwell on the face of the whole earth.
For that day will not come with observation, but unexpectedly, secretly, like a net capturing those who are inattentive to themselves. Another person might perhaps investigate in detail the expression: "dwelling (sitting) upon the face of all the earth." That day will capture in its net those who lead a carefree and idle life. For it is precisely they who are sitting, and they are the ones caught in the net. But whoever is active and industrious, vigilant in the doing of good and always striving toward good, does not sit and does not rest content with earthly things, but rouses himself and says to himself: "Arise and depart, for this land is not a place of rest" (Mic. 2:10), and desires a better fatherland — for him that day is not a net and calamity, but rather a festival.
Lk. 21:36. Therefore be watchful at all times and pray, that you may be counted worthy to escape all these coming calamities and to stand before the Son of Man.
Therefore one must be watchful and pray to God, so that we may be able to escape all the coming calamities. Which ones? Perhaps, first, famine and pestilence, and the rest, which will not burden the elect as much as the others, but on the contrary, will be shortened for the others' sake on account of the elect; perhaps, second, those which will come upon sinners for eternity, for we cannot escape them otherwise than by watchfulness and prayer. Since for the magnanimous it is not enough to escape affliction, but they also need to obtain some good, having said, that you may be able to escape all the coming calamities, the Lord added: "and to stand before the Son of Man," in which the enjoyment of blessings consists. For a Christian must not only flee from evils, but also strive to obtain glory. And to stand before the Son of Man and our God is an angelic dignity. For it is said: "Their angels in heaven always behold the face of My Father" (Mt. 18:10).
Lk. 21:37. During the day He taught in the temple, and at night, going out, He spent on the mountain called Olivet.
Lk. 21:38. And all the people came early in the morning to Him in the temple to hear Him.
The Evangelists, especially the first three, did not transmit a great deal of what the Lord taught. It is true that John himself also passed over very much in silence, yet he, beyond what the three transmitted, set forth certain higher teachings of the Lord. The Lord, as one may surmise, taught many lofty truths to those gathered in the temple. That the Evangelists said little, for they did not even wish to declare everything, is evident from much else, and one may conclude no less about this from the fact that, although the Lord taught for nearly three years, they recorded so few of His teachings that, in my opinion, one who said they could be delivered in less than a single day would not deserve censure. Thus the holy Evangelists wrote little out of much, so as merely to convey a taste of the sweetness. The Lord did not speak to everyone in the same way, but offered to each what was profitable. Therefore the people came to Him early in the morning, for grace poured forth from His lips. At night the Lord withdrew to the mountain, showing us that in the quiet of the night one should converse with God, while by day, amid encounters with people, one should bring them benefit — gathering by night and distributing by day what has been gathered. He Himself had no need of prayer or communion with God, for being God Himself, He had nothing in which to humble Himself; but He established this as a pattern for us, so that during the night, like wells, we might draw into ourselves the flow from spiritual veins — that is, prayer — and by day those who are in need of what is profitable might draw it out from us. Looking at how the people came early in the morning to Jesus to hear Him, one might say that the words of David apply to Him: "O God, You are my God; early will I seek You; my soul thirsts for You" (Ps. 63:1).