These three are about Jesus' Second Coming:
from:
Revelation 1 Bible Commentary - John Gill’s Exposition of the Bible
"it is better therefore to understand this of Christ's second coming to judge the quick and dead, which is represented as just at hand, to denote the certainty of it; and a "behold" is prefixed to it, to excite attention, and to denote the importance of it: things of great moment, and very surprising, will then be done;
"Christ will appear in great glory and majesty, the dead in Christ will
be raised, Christ's personal kingdom will take place, and the general judgment come on.
"The manner of his coming will be "with clouds"; either figuratively, with angels, who will attend him both for grandeur and service, or literally, in the clouds of heaven; he shall descend in like manner as he ascended, and as Daniel prophesied he should,
Daniel 7:13.
"I saw in the night visions, and, behold, one like the Son of man came with the clouds of heaven, and came to the Ancient of days, and they brought him near before him."
"Hence, one of the names of the Messiah, with the Jews, is, ynne, "Anani" {r}, which signifies "clouds"; and his coming is so described, both to denote the grand and magnificent manner, in which he will come, making the clouds his chariots;
"and to strike terror into his enemies, clouds and darkness being about him, thunder and lightning breaking out of them, as tokens of that vengeance he comes to take upon them;
"as also the visibility of his coming, he shall descend from the third heaven, where he now is, into the airy heaven, and sit upon the clouds, as on his throne, and be visible to all:"
...
These two from Matthew are just before the Destruction of Jerusalem:
Since both of these are in the passages referring to the time before the destruction of Jerusalem, their meaning must be derived in that fashion.
From:
Matthew 24 Bible Commentary - John Gill’s Exposition of the Bible
"he shall appear, not in person, but in the power of his wrath and vengeance, on the Jewish nation which will be a full sign and proof of his being come:
"for the sense is, that when the above calamities shall be upon the civil state of that people, and there will be such changes in their ecclesiastical state it will be as clear a point, that Christ is come in the flesh, and that he is also come in his vengeance on that nation, for their rejection and crucifixion him, as if they had seen him appear in person in the heavens.
"They had been always seeking a sign, and were continually asking one of him; and now they will have a sign with a witness;"
Note: "this sign is not said to be sounded, but to appear, or to be seen, which does not agree with the sounding of a trumpet:
"much less can this design the last trumpet at the day of judgment, since of that the text does not speak;
"and, for the same reason, the clouds cannot be meant in which Christ will come to judgment, nor are clouds in themselves any sign of it: nor the latter, of which there is no hint in the word of God, nor any reason to expect it, nor any foundation for it;
"nor is any miraculous star intended, such as appeared at Christ's first coming, but the son of man himself:
"just as circumcision is called the sign of circumcision,
Romans 4:11
"and Christ is sometimes called a sign,
Luke 2:34
"as is his resurrection from the dead,
Matthew 12:39
"and here the glory and majesty in which he shall come: and it may be observed, that the other evangelists make no mention of the sign, only speak of the son of man,
Mark 13:26
"his coming in his wrath and vengeance to destroy that people, their nation, city, and temple:
"so that after this to look for the Messiah in a desert or secret chamber, must argue great stupidity and blindness;
"when his coming was as sudden, visible, powerful, and general, to the destruction of that nation, as the lightning that comes from the east, and, in a moment, shines to the west."
Note: "which must be understood not of his last coming to judgment, though that will be sudden, visible, and universal;
"he will at once come to, and be seen by all, in the clouds of heaven, and not in deserts and secret chambers:
"nor of his spiritual coming in the more sudden, and clear, and powerful preaching of the Gospel all over the Gentile world; for this was to be done before the destruction of Jerusalem:"