[Matthew 23:36] "Verily I say unto you, All these things shall come upon this generation. What generation? Answer "this" first century generation Not! "that" 21st century generation.

[Matthew 24:34] "Verily I say unto you, This generation shall not pass, till all these things be fulfilled." All these thing included a Coming see [Matthew 24:3] It says His Coming!

[Matthew 16:27-28] Jesus said that some of His disciples, who were standing right there in front of Him, would not die until they have seen the Son of man coming in His kingdom. And the apostle John is one of these apostles who lived to see the destruction of Jerusalem in 70 A.D. Jesus said He is coming within the lives of his audience. It's not hard to see, that Jesus would return before some of them died.

[Matthew 10:23] But whenever they persecute you in one city, flee to the next; for truly I say to you, you will not finish going through the cities of Israel until the Son of Man comes.

This is saying Jesus' disciples would not be able to finish their work in all the cities of Israel before Jesus returns. Now! did it happen or not?! A child can understand this why can't adults?

[Luke 21:22] For these are the days of vengeance, that all things which are written may be fulfilled.

Jesus said everything written would be fulfilled in His generation! Knowing this has many more blessings, rather than some scary end times scenario.

[Luke 21:32]

Truly I say to you, this generation will not pass away until all things take place.

Was Jesus mistaken when He told this to His disciples standing right in front of Him?

[Matthew 23:35]

That upon you may come all the righteous blood shed upon the earth, from the blood of righteous Abel unto the blood of Zacharias son of Barachias, whom ye slew between the temple and the altar.

[Matthew 23:37] O Jerusalem, Jerusalem, thou that killest the prophets...

Jesus identifies Jerusalem as Babylon and guilty of all " the blood of prophets, and of saints, and of all that were slain upon the earth."

You can't have "all the righteous bloodshed" in two separate entities. Babylon is Old Covenant Jerusalem. This will not happen in the 21st century.

[Luke 11:51]

From the blood of Abel unto the blood of Zacharias which perished between the altar and the temple: verily I say unto you, It shall be required of this generation.

Jesus was saying that the generation He was in would take the fall for killing the prophets.

[John 21:22] Jesus said to him (Peter), "If I want him (John) to remain until I come, what is that to you? You follow Me!"

Jesus told Peter "What is it to you if I keep John alive until my second coming? Jesus told those who were listening that they would live to see the Second Coming. (He was not speaking to you! He was speaking to the people standing right in front of Him.)

In [Matthew 24:6] Jesus said "You will be hearing of wars and rumors of wars. See that you are not frightened, for those things must take place, but that is not yet the end."

Now if this was not to happen in the first century don't you think Jesus' disciples would have asked "Why are you telling us if this is going to happen in 2,000 years?"