2 Timothy 4:3-4 For the time will come when they will not endure sound doctrine, but according to their own desires, because they have itching ears, they will heap up for themselves teachers; and they will turn their ears away from the truth, and be turned aside to fables.
No one is so fierce that would dare predict the exact coming of Christ or when this existing world will perish or the day of judgment and perdition of ungodly men.
Acts 1:7 And he said unto them, It is not for you to know the times or the seasons, which the Father hath put in his own power.
But it was tried & predicted many times by irresponsible people who don't know what they are talking about destroying themselves.
2 Peter 3:16 As also in all his epistles, speaking in them of these things; in which are some things hard to be understood, which they that are unlearned and unstable wrest, as they do also the other scriptures, unto their own destruction.
The predictions indeed never came, thus, damaging their credibility. Surprisingly, their members rest on them despite being presumptuous and self-willed
Romans 12:9 Let love be without hypocrisy. Abhor what is evil. Cling to what is good.
Timing is the Father's business not ours.