'Generation' in the Bible

“But to what shall I compare this generation? It is like little children sitting in the market places, who call to the others,

But He replied and said to them, “An evil and adulterous generation [that is morally unfaithful to God] craves and demands a [miraculous] sign; but no sign will be given to it except the sign of the prophet Jonah;

The men of Nineveh will stand up [as witnesses] at the judgment against this generation, and will condemn it because they repented at the preaching of Jonah; and now, something greater than Jonah is here.

The Queen of the South (Sheba) will stand up [as a witness] at the judgment against this generation, and will condemn it because she came from the ends of the earth to listen to the wisdom of Solomon; and now, something greater than Solomon is here.

Then it goes and brings with it seven other spirits more wicked than itself, and they go in and make their home there. And the last condition of that man becomes worse than the first. So will it also be with this wicked generation.”

An evil and [morally] unfaithful generation craves a [miraculous] sign; but no sign will be given to it, except the sign of [the prophet] Jonah.” Then He left them and went away.

And Jesus answered, “You unbelieving and perverted generation, how long shall I be with you? How long shall I put up with you? Bring him here to Me.”

I assure you and most solemnly say to you, [the judgment for] all these things [these vile and murderous deeds] will come on this generation.

I assure you and most solemnly say to you, this generation [the people living when these signs and events begin] will not pass away until all these things take place.