This is a little tidbit from my upcoming book, The World to Come (title tentative, due out March 2008 by Messianic Jewish Publishers at http://www.messianicjewish.net).
Basically this is very little of my writing, but is a summary of a wonderful list by the rabbis in Exodus Rabbah, a rabbinic, midrashic commentary on Exodus. Their list, as you can see, is drawn from scripture.
The Days of Messiah are not the final days. There is yet an age to come after them. This is the opinion of part of the Christian world as well as the view of the Talmudic rabbis. The rabbis of Israel thought of the Days of Messiah as an agricultural paradise. They spoke of grapes so large, a man would keep just one in his house and draw thirty measures of wine from it. They spoke of grain and fruit growing much more rapidly than in this age. They even spoke of women bearing children daily!
In a rabbinic commentary on Exodus, the rabbis put their biblical genius to work figuring out ten things that will change in the Days of Messiah:
1. God will replace the sun as the light of this world (Isa. 60:19).
2. Healing waters will flow out from the temple in Jerusalem (Ezek. 47:9).
3. Fruit will grow every month (Ezek. 47:12).
4. Ruined cities will all be rebuilt and there will be no waste places (Ezek. 16:55).
5. Jerusalem will be rebuilt with sapphires (Isa. 54:11).
6. Nature will be at peace with no more killing (Isa. 11:7).
7. Israel will have a covenant with the wild beasts (Hos. 2:18).
8. There will be no weeping in the world (Isa. 65:19).
9. Death will cease (Isa. 25:8).
10. There will be joy without groaning (Isa. 35:10).
Exodus Rabbah 15:21