and Jesus said "Verily I say unto you, This generation shall not pass, till all these things be fulfilled."
even IF Jesus was meaning 2 separate tribulations, he still meant 1 generation would see all of it. It is a brief period of time, not thousands of years.
Not the part that started in the first century. Jesus told them, those sitting on the mount of Olives, they would go through great tribulation and all that came after them until the very end. Verses 4-14 is not one single generation. It was the whole NT period from the Cross until the end.
"And Jesus answered and said unto them, Take heed that no man deceive you. For many shall come in my name, saying, I am Christ; and shall deceive many. And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all these things must come to pass, but the end is not yet."
That was the entire church being warned, not a single generation. The generation that sees the end sees all the verses after the end is declared.
"And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come."
That is the end.
The next verse starts from the end and goes until the parable. The parable is the generation that sees the fig tree bloom. That is not the last event they see.
The first event is Israel becoming a nation. Then the Second Coming. Then the time of Jacob's trouble. Then the AoD, the last 42 months before Armageddon. Armageddon is the end. Not the beginning of that generation. Armageddon does not happen, and then the AoD, and then the tribulation, and then the Second Coming, ending with Israel becoming a nation.
Two tribulations. The one starting with the Cross. The other starting with the Second Coming. The Gospel is still preached by the 2 witnesses up until 3.5 days before Armageddon.
"And I saw another angel fly in the midst of heaven, having the everlasting gospel to preach unto them that dwell on the earth, and to every nation, and kindred, and tongue, and people,"
This is still true those last 3.5 days while the 7 vials of God's wrath is poured out while those 2 witnesses lay dead in the street of Jerusalem. In fact even when those 2 come back to life they still give glory to God during the earthquake. But then all are killed hours later at Armageddon. That is the end. Some of these will have seen Israel become a nation.
"And the same hour was there a great earthquake, and the tenth part of the city fell, and in the earthquake were slain of men seven thousand: and the remnant were affrighted, and gave glory to the God of heaven."
"And there were voices, and thunders, and lightnings; and there was a great earthquake, such as was not since men were upon the earth, so mighty an earthquake, and so great. And the great city was divided into three parts, and the cities of the nations fell: and great Babylon came in remembrance before God, to give unto her the cup of the wine of the fierceness of his wrath."
The next scene is the battle of Armageddon. The End.
Then the Day of the Lord begins.