Matthew 5:18

For it is true when I say, not one little letter or even a portion of a letter will be removed from the law of Moses until everything is accomplished [that is required by them]. [When that happens, then] heaven and earth will pass away [i.e., be destroyed. See II Peter 3:12].

Matthew 24:21

There will be great trouble [during these times], such as had never been from the beginning of time up to the present, or ever will be [in the days to come].

Mark 13:19

There will be great trouble during those days, such as had never been from the beginning of God's creation until the present, or even will be [in the days to come].

Luke 21:22

For these are times for punishment [i.e., to be inflicted on Jerusalem], so that everything written [i.e., by the prophets] may be fulfilled [i.e., about Jerusalem's destruction. See Dan. 9:26-27].

Romans 15:8

For I tell you that Christ was [appointed] to be a servant of the circumcised ones [i.e., the Jews], in order to uphold the truth of God. This was so He could confirm [as valid] the promises made to our forefathers,

Treasury of Scripture Knowledge

Summary

And he hath confirmed his words, which he spake against us, and against our judges that judged us, by bringing upon us a great evil: for under the whole heaven hath not been done as hath been done upon Jerusalem.

Bible References

Confirmed

Matthew 5:18
For it is true when I say, not one little letter or even a portion of a letter will be removed from the law of Moses until everything is accomplished [that is required by them]. [When that happens, then] heaven and earth will pass away [i.e., be destroyed. See II Peter 3:12].
Romans 15:8
For I tell you that Christ was [appointed] to be a servant of the circumcised ones [i.e., the Jews], in order to uphold the truth of God. This was so He could confirm [as valid] the promises made to our forefathers,

For under

Matthew 24:21
There will be great trouble [during these times], such as had never been from the beginning of time up to the present, or ever will be [in the days to come].
Mark 13:19
There will be great trouble during those days, such as had never been from the beginning of God's creation until the present, or even will be [in the days to come].
Luke 21:22
For these are times for punishment [i.e., to be inflicted on Jerusalem], so that everything written [i.e., by the prophets] may be fulfilled [i.e., about Jerusalem's destruction. See Dan. 9:26-27].