Matthew 24:21-22
for it will be a time of great suffering, such as never has been from the beginning of the world till now, and assuredly never will be again.
Mark 13:19
For those will be times of suffering the like of which has never been from the first creation of God's world until now, and assuredly never will be again;
Acts 2:20
The sun shall be turned into darkness and the moon into blood, to usher in the day of the Lord-- that great and illustrious day;
Romans 11:26
and so all Israel will be saved. As is declared in Scripture, "From Mount Zion a Deliverer will come: He will remove all ungodliness from Jacob;
Revelation 6:17
for the day of His anger--that great day--has come, and who is able to stand?"