The following was borrowed from our website article, What is the age of the earth?
We learn the following from Talmud (the “Oral Torah"- which is commentary on the first five books of the Bible):
Sanhedrin, Babylonian Talmud p. 97 a.: Rabbi Kattinna said: Six thousand years shall the world exist, and one [thousand, the seventh], it shall be desolate, as it is written, And the Lord alone shall be exalted in that day. [quotation from Isaiah chapter 2 verse 11].
Rabbi Abaye said: It will be desolate two thousand as it is said, After two days will he revive us: in the third day, he will raise us up, and we shall live in his sight [quoting from the prophet Hosea chapter 6 verse 2]. Two days meaning two thousand years according to Psalms 90 verse 4.
In other words, there will be:
• Two thousand years of chaos (before Yahweh gave us His written Torah) when the world was steeped in paganism (that's why He destroyed the world by Flood - see Genesis 7 through 9; also read through Exodus 20 when The Ten Commandments were given at Mt. Sinai at a time when YHWH was in the process of trying to show His people how to BE set apart for Him).
NOTE: By the way, Torah has always been around. It is YHWH's Divine Instruction in Righteousness (outlined in the first five Books of the Bible) without which we would have NO blueprint for moral, holy living. Cain and Abel knew to present animal sacrifices (Genesis 4); Noah knew the difference between "clean and unclean" animals (Gen. 7:1-3).
For those who insist Torah is just a "Jewish thing" you need to realize there we no "Jews" until our Third Patriarch, Jacob, fathered his son Yehudah/Judah, who headed the Tribe of Judah (where the term "Jew" originated) - and yet EVERYONE up until that time who believed in the God of Abraham, Isaac and Jacob was TORAH OBSERVANT....
• Two thousand years of Torah and learning about Yahweh and studying His teachings of morality (which began with Abraham, who became a "Hebrew" when he physically and spiritually "crossed over"; and included not only the 613 commandments, but later the Ten Commandments given to Moshe/Moses).
• Two thousand years of Messiah (which we are in now from the time that Yeshua walked the Earth and died as our Final SIN Sacrifice). And soon, as the Bible says, we will enter the Millenium with Yeshua as ruler of the earth for one thousand years, being taught personally by Him. After that, as the Bible tells us, there will be a "new heaven and a new earth."