End of Times and career

[Lek]

Harold Camping comes first to mind when I think about people who knew when the world is going to end.

Charlie Campbell knows when the world is going to end.

John Hagee and Mark Biltz
The so-called Blood Moon Prophecy, first predicted by Mark Blitz in 2008 and then by John Hagee in 2014. These Christian ministers claim that the tetrad in 2014 and 2015 may allegedly represent prophecies given in the Bible relating to the second coming of Jesus Christ.

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Heck, if you have children who go to high school now, then there is no point to save for their college.
Because
Jeane Dixon claimed that Armageddon would take place in 2020 and Jesus will return to defeat the unholy Trinity of the Antichrist, Satan and the False prophet between 2020 and 2037. She had also previously predicted the world would end on February 4, 1962.

or a year later...
F. Kenton Beshore bases his prediction on the prior suggestion that Jesus would return in 1988, i.e., within one Biblical generation (40 years) of the founding of Israel in 1948. Beshore argues that the prediction was correct, but that the definition of a Biblical generation was incorrect and was actually 70–80 years, placing the Second Coming of Jesus between 2018 and 2028 and the Rapture by 2021 at the latest.

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Really, a helluva lot of people have known when the world will come to the end and passed that knowledge to their disciples and followers.

https://en.wikipedia.org/wiki/List_of_da...tic_events

Obviously they didn't know when the world was going to end.