Jewish eschatology is about the beliefs about the end of the world and how it will be. People who are Jewish believe that, eventually, the world will end and peace will come to Earth and all people will be treated fairly. They also believe that a messiah will come to save them and this will happen when the world is at its darkest and most troubled. They also usually believe that in the end of times there will be a resurrection of the dead, so those who have passed away will be reunited with those still living.