'This Generation' in the Bible

because just as Jonah became a sign to the people of Nineveh, so the Son of Man will be a sign to this generation.

from the blood of Abel to the blood of Zechariah, who died between the altar and the sanctuary. Yes, I tell you, it will be charged against this generation!

I tell all of you with certainty, this generation won't disappear until all these things take place.