Revelation and Old Testament ( inc Daniels 70th week) speaks...

Revelation and Old Testament ( inc Daniels 70th week) speaks about many horrific events that will happen during the Great Tribulation which is the final 3 and a half years of the 7 year Tribulation that will start once The Church is gone.
Christ predicted the events we are experiencing now which are a sign of His Churches coming rapture but are separate from the 7 year and Great Tribulation above.