The messiah, the one the Jewish prophet wrote about has not come, if he does come the world will enjoy everlasting peace as he will usher in an era of Peace. He is not coming to be a sacrifice for sin.. God does not like human sacrifice nor condone it.. He even punished the jews when they sacrifice their sons and daughters to moloch..

The new convenant that God promised was a convenant of everlasting peace.. Since we are still fighting and killing ourselves everyday and inventing new WMD it is safe to say the messiah has not come.. And again he is coming once as there are no second coming arrangements with the messiah.....

Jesus is just a story concorted by the Romans at the council of Nicea to deceive people and mock God..