Midrash su Isaia 18:26

... The judgment of the wicked in Gehinnom lasts twelve months, as it says “And it shall be from new moon to new moon…” (Yeshayahu 66:23) R’ Yochanan ben Nuri says: from Pesach until Atzeret (Shavuot), as it says “…and from Sabbath to Sabbath…” (ibid.) After twelve months the souls of the sinners of Israel who transgressed the Torah and the commandments are consumed and their bodies are consumed and they are turned to dust. Gehinnom spits them out and the wind scatters them underneath the feet of the righteous, as it says “And you shall crush the wicked, for they will be as ash under the soles of your feet…” (Malachi 3:21) But those who separated from the ways of the community, like the Sadducees, and the betrayers and the hypocrites and the heretics, and those who ‘spread their terror in the land of the living,’ and those who denied the resurrection, and those who say Torah is not from heaven, and those who scoff at the words of the Sages – Gehinnom is locked before them and they are judged there forever, as it says “And they shall go out and see the corpses of the people who rebelled against Me…” (Yeshayahu 66:24) Not only this, but the netherworld will cease to be but they will not cease to be, as it says “…and their form will outlast the grave as his dwelling place (zevul).” (Tehillim 49:15) From His dwelling place He will wear out their form, and their form will wear out the netherworld. What caused this to happen to them? Because they stretched out their hands against the dwelling place, as it says ‘as his dwelling place,’ and there is no dwelling place other than the Holy Temple, as it says “I have surely built You a house to dwell in…” (Melachim I 8:13)

R. Chanina said: "Ben David will not come until such a time when a piece of fish will be sought for a sick one, and it will not be found, as it is said (Ez. 32, 14) Then will I make clear their waters, and cause their rivers to flow like oil. And there is also another verse (Ib. 29, 21) On that day will I cause to grow a horn for the house of Israel, and unto thee will I open the mouth in the midst of them." R. Chama b. Chanina said: "Ben David will not appear until even the slightest trace of tyranny against Israel will be removed, as it is said (Is. 18, 5) He will both cut off the tendrils with pruning-knives, and the sprigs he will remove and cut down." And thereafter, it is written, At that time shall be brought as a present unto the Lord of Hosts a people pulled and torn." And Zera, in the name of R. Chanina said: "Ben David will not come until the presumptuous men of Isarel will cease to exist, as it is said (Zeph. 3, 11) For then will I remove out of the midst of thee, those that rejoice in thy pride, and thou shalt never more be haughty again on My mount. And thereafter it is written, I will leave, remaining in the midst of thee, a humble and poor people, and they shall trust in the name of the Lord." R. Simlai said, in the name of R. Elazar b. Simon: "Ben David will not come unless there will cease to be judges and officers of Israel, as it is said (Is. 1, 25) And I will turn My hand against thee, and purge as with lye thy dross, and remove all thy tin. And I will restore thy judges as at first, and thy counsellors as at the beginning, etc."

... "Until he comes to Shiloh" - as in the future all of the nations of the world will bring a present to (shai le) the Messiah, the son of David, as it is stated (Isaiah 18:7), "at that time, a present shall be brought to the Lord of hosts" ...