No I don't believe in Jehovah's witness addendum to the bible. It is pure fiction written by an adulterer. In regards to tribulation Jesus statements are very opened ended and we should not extrapolate them into signs of a current day Armageddon. For only a wicked and adulteress generation asks for signs. I don't pretend to have all the answers. Please when interpreting the bible seek professional advice from a mainstream church that cares about preserving the purity of the gospel.
