Many are puzzled by Jesus Christ's words, "Assuredly, I say to you, this
generation will by no means pass away till all these things take place" (Matthew 24:34).
Did He mean that generation of His disciples? First, note the future context.
Jesus had just said, "So you also, when you see all these things, know
that it is near—at the doors!" (verse 33).
Did His disciples "see all these things" in their generation?
Certainly not. They were not in a generation that had the ability to destroy
all of mankind. Jesus said of the final, end-time generation, "And unless
those days were shortened, no flesh would be saved" (verse 22). Clearly
the weapons of that day were not sufficient to bring this prophecy to pass.
Although Christ's disciples did see wars, famines, plagues and persecutions,
and some even lived to see the destruction of Jerusalem several decades
later, these were not the total fulfillment of Jesus Christ's words. They
were not the prophesied global events that would directly lead to Jesus
Christ's return.
So what did Jesus mean when He referred to "this generation"? He could
not have meant that current generation of His day. They died without seeing
all the events leading to His return. The obvious meaning, then, is that
He could only have meant the generation of the last days.
Jesus knew that the course of end-time events would not continue indefinitely.
Once they were set in motion, all would occur within the lifetime of one
generation. Only one generation will witness all the mounting global conditions
described in God's Word. That generation will see the arrival of the specific
3 1⁄2-year period that will mark the end of "this present evil age" and
usher in the Kingdom of God.