Passage to Paradise

There have been on this earth many natural disasters that came upon us that we were not prepared for leaving a trail of destruction and death. It has often been said: "If only we were better prepared so many lives would not have been lost." In the case of a tsunami, hurricane, tornado, snow storm, flood, earthquake, typhoon, or volcano, natural disasters have caused severe death and destruction in many corners of this earth. If we knew beforehand about one of these imminent disasters, we would most certainly be prudent to prepare ourselves to avoid loss of life.
Just as in the case of being prepared for the aforementioned disasters, how prepared are we for what's coming at the end of time?
Even with all the present day's science and technology, and with future inventions of science and technology, no one upon this earth will know the exact time of this coming end.
For thousands of years, before books even existed and subjects developed in the sciences and technology, we were given the key to knowledge by the word of God to warn us to be prepared for the end of time.