'This Generation' in the Bible

"To what then shall I compare the men of this generation? What are they like?

for as Jonah was a Sign to the Ninivites, so shall the Son of man be to this generation.

The queen of the South will rise at the judgment with the men of this generation and condemn them; for she came from the ends of the earth to listen to the wisdom of Solomon, and here is One greater than Solomon.

The men of Ninive will rise at the judgment with this generation and condemn it; for when Jonah preached they did repent, and here is One greater than Jonah.

it was that the blood of all the prophets shed from the foundation of the world might be charged upon this generation,

from the blood of Abel down to the blood of Zechariah who was slain between the altar and the House of God ??yes, I tell you, it will all be charged upon this generation.