What do you all think?

I watch a lot of national geographic, especially when they bring the religious features. Some people believe that the book of revelation has come and ped already, but wouldnt that mean that they shouldnt be any sin or death?. Also if anyone has seen the thing about Judas saying that he didint actually betray god that he was told to do it or something like that, I dont know what to believe cause they said they have a book of judas that wasnt placed in the bible. So I am wondering now if this could be true what do you all think?