The Tribulation Jesus spoke of happened to that generation.
Not us, although our generation has its own issues and God is Lord over that
too. Verse 19 even shows that the tribulation that
was coming on that generation will never be like that on future generations,
thus note "neither shall be."
Mark 13:19-31 *19,30 (Jesus speaking)
v19 For in those days shall be
affliction, such as was not from the beginning of the creation which God
created unto this time, neither shall be.
v30 Verily I say unto you, that this generation shall not pass, till all these things be done.
Here are more scriptures to show
this:
Matthew 23:36 (Jesus speaking)
Verily I say unto you, All these things shall come upon this generation.
Matthew 24:21 (Jesus speaking)
For then shall be great tribulation, such as was not since the beginning of the
world to this time, no, nor ever shall be.
Amen.