Many-sided though Elijah's participation in the course of historical events is, it cannot be compared with what he is expected to do in the days of the Messiah. He is charged with the mission of ordering the coming time aright and restoring the tribes of Jacob. (105) His Messianic activity thus is to be twofold: he is to be the forerunner of the Messiah, yet in part he will himself realize the promised scheme of salvation. His first task will be to induce Israel to repent when the Messiah is about to come, (106) and to establish peace and harmony in the world. (107) Hence he will have to settle all legal difficulties, and solve all legal problems, that have accumulated since days immemorial, (108) and decide vexed questions of ritual concerning which authors entertain contradictory views. In short, all difference of opinion must be removed from the path of the Messiah. (109) This office of expounder of the law Elijah will continue to occupy even after the reign of peace has been established on earth, and his relation to Moses will be the same Aaron once held. (110) Elijah's preparatory work will be begun three days before the advent of the Messiah. Then he will appear in Palestine, and will utter a lament over the devastation of the Holy Land, and his wail will be heard throughout the world. The last words of his elegy will be: "Now peace will come upon earth!" When the evil-doers hear this message, they will rejoice. On the second day, he will appear again and proclaim: "Good will come upon earth!" And on the third his promise will be heard: "Salvation will come upon earth." (111) Then Michael will blow the trumpet, and once more Elijah will make his appearance, this time to introduce the Messiah. (112) To make sure of the identity of the Messiah, the Jews will demand that he perform the miracle of resurrection before their eyes, reviving such of the dead as they had known personally. (113) But the Messiah will do the following seven wonders: He will bring Moses and the generation of the desert to life; Korah and his band he will raise from out of the earth; he will revive the Ephraimitic Messiah, who was slain; he will show the three holy vessels of the Temple, the Ark, the flask of manna, and the cruse of sacred oil, all three of which disappeared mysteriously; he will wave the sceptre given him by God; he will grind the mountains of the Holy Land into powder like straw, and he will reveal the secret of redemption. Then the Jews will believe that Elijah is the Elijah promised to them, and the Messiah introduced by him is the true Messiah. (114)