'This Generation' in the Bible

And the Lord said, Whereunto then shall I liken the men of this generation? and to what are they like?

For as Jonas was a sign unto the Ninevites, so shall also the Son of man be to this generation.

The queen of the south shall rise up in the judgment with the men of this generation, and condemn them: for she came from the utmost parts of the earth to hear the wisdom of Solomon; and, behold, a greater than Solomon is here.

The men of Nineve shall rise up in the judgment with this generation, and shall condemn it: for they repented at the preaching of Jonas; and, behold, a greater than Jonas is here.

That the blood of all the prophets, which was shed from the foundation of the world, may be required of this generation;

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.

But first must he suffer many things, and be rejected of this generation.

Verily I say unto you, This generation shall not pass away, till all be fulfilled.