The sign of the Son of man in heaven

The everlasting gospel, the abomination that provoketh desolation, the time of trouble, the constellational sign of the Son of man, the moon and Venus coinciding (hence the star, moon, sickle symbols on flags (Middle Eastern and Russian) and other things), and the harvest

Matthew 24 ¹²And because iniquity shall abound, the love of many shall wax cold. ¹³But he that shall endure unto the end, the same shall be saved. ¹⁴And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come. ¹⁵When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand:)
¹⁶Then let them which be in Judaea flee into the mountains: ¹⁷Let him which is on the housetop not come down to take any thing out of his house: ¹⁸Neither let him which is in the field return back to take his clothes. ¹⁹And woe unto them that are with child, and to them that give suck in those days! ²⁰But pray ye that your flight be not in the winter, neither on the sabbath day: ²¹For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.
²²And except those days should be shortened, there should no flesh be saved: but for the elect's sake those days shall be shortened. ²³Then if any man shall say unto you, Lo, here is Christ, or there; believe it not. ²⁴For there shall arise false Christs, and false prophets, and shall show great signs and wonders; insomuch that, if it were possible, they shall deceive the very elect. ²⁵Behold, I have told you before. ²⁶Wherefore if they shall say unto you, Behold, he is in the desert; go not forth: behold, he is in the secret chambers; believe it not.
²⁷For as the lightning cometh out of the east, and shineth even unto the west; so shall also the coming of the Son of man be. ²⁸For wheresoever the carcase is, there will the eagles be gathered together. ²⁹Immediately after the tribulation of those days shall the sun be darkened, and the moon shall not give her light, and the stars shall fall from heaven, and the powers of the heavens shall be shaken: ³⁰And then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the Son of man coming in the clouds of heaven with power and great glory. ³¹And he shall send his angels with a great sound of a trumpet, and they shall gather together his elect from the four winds, from one end of heaven to the other.

Mark 13 ¹⁴But when ye shall see the abomination of desolation, spoken of by Daniel the prophet, standing where it ought not, (let him that readeth understand,) then let them that be in Judaea flee to the mountains: ¹⁵And let him that is on the housetop not go down into the house, neither enter therein, to take any thing out of his house: ¹⁶And let him that is in the field not turn back again for to take up his garment. ¹⁷But woe to them that are with child, and to them that give suck in those days! ¹⁸And pray ye that your flight be not in the winter. ¹⁹For in those days shall be affliction, such as was not from the beginning of the creation which God created unto this time, neither shall be.
²⁰And except that the Lord had shortened those days, no flesh should be saved: but for the elect's sake, whom he hath chosen, he hath shortened the days. ²¹And then if any man shall say to you, Lo, here is Christ; or, lo, he is there; believe him not: ²²For false Christs and false prophets shall rise, and shall show signs and wonders, to seduce, if it were possible, even the elect. ²³But take ye heed: behold, I have foretold you all things.

²⁴But in those days, after that tribulation, the sun shall be darkened, and the moon shall not give her light, ²⁵And the stars of heaven shall fall, and the powers that are in heaven shall be shaken. ²⁶And then shall they see the Son of man coming in the clouds with great power and glory. ²⁷And then shall he send his angels, and shall gather together his elect from the four winds, from the uttermost part of the earth to the uttermost part of heaven.

Revelation 2 ²⁴But unto you I say, and unto the rest in Thyatira, as many as have not this doctrine, and which have not known the depths of Satan, as they speak; I will put upon you none other burden. ²⁵But that which ye have already hold fast till I come. ²⁶And he that overcometh, and keepeth my works unto the end, to him will I give power over the nations: ²⁷And he shall rule them with a rod of iron; as the vessels of a potter shall they be broken to shivers: even as I received of my Father. ²⁸And I will give him the morning star.
²⁹He that hath an ear, let him hear what the Spirit saith unto the churches.

Revelation 22 ¹⁴Blessed are they that do his commandments, that they may have right to the tree of life, and may enter in through the gates into the city. ¹⁵For without are dogs, and sorcerers, and whoremongers, and murderers, and idolaters, and whosoever loveth and maketh a lie. ¹⁶I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and the offspring of David, and the bright and morning star.
¹⁷And the Spirit and the bride say, Come. And let him that heareth say, Come. And let him that is athirst come. And whosoever will, let him take the water of life freely. ¹⁸For I testify unto every man that heareth the words of the prophecy of this book, If any man shall add unto these things, God shall add unto him the plagues that are written in this book:

Matthew 2 1 Now when Jesus was born in Bethlehem of Judaea in the days of Herod the king, behold, there came wise men from the east to Jerusalem, 2 Saying, Where is he that is born King of the Jews? for we have seen his star in the east, and are come to worship him.