The Bible discusses a time that is coming that it the 'Great Tribulation'.
Matt 24:21
KVJ For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.
American Standard Version for then shall be great tribulation, such as hath not been from the beginning of the world until now, no, nor ever shall be.
The Emphasized Bible For there will be then Great tribulation, Such as hath not happened from the beginning of the world until the present time, Neither in any wise shall happen.
NW Translation for then there will be great tribulation such as has not occurred since the world’s beginning until now, no, nor will occur again.