According to the Bible there will be a period of time in which events will take place fulfilling prophecies concerning ‘the last days’ of this age.
Most people choose to scoff and mock at this idea, but that is also prophesied in 2 Peter 3.3-13:
‘Scoffers will come in the last days, walking according to their own lusts, and saying, “Where is the promise of His coming?
So don’t be a scoffer, but believe the Gospel, that Jesus is the Messiah who died for our sins and rose from the dead to give us salvation and eternal life.