-Talmud, Eruvin 43b
The world will last for 6,000 years: 2,000 years of desolation, 2,000 years of Torah, and 2,000 years of the days of the Messiah. In the seventh millennium, the world will be rebuilt in glory.
-Seder Olam Rabbah, Chapter 1
At the end of days, Elijah will stand on the mountains of Israel and blow the great shofar, proclaiming the time of redemption.
-Pirkei DeRabbi Eliezer, Chapter 11
The Holy One, Blessed be He, has set a time for redemption, but if Israel merits, the Messiah will come earlier.
-Yalkut Shimoni, Isaiah 60:22
The seventh millennium will be a time of peace and renewal, as it is written: ‘And on the seventh day, God rested and was refreshed’ (Exodus 31:17). So, too, the world will rest in the seventh millennium.
-Pesikta Rabbati 34
In Nisan they were redeemed, and in Nisan they will be redeemed in the future.
-Talmud, Rosh Hashanah 11a
Truth will spring from the earth, and righteousness will look down from heaven. In the days of the Messiah, the times of God will become clear, and the righteous will walk in His light.
-Midrash Tehillim (on Psalm 85:11)
Elijah will come to herald the arrival of the Messiah, and he will teach the mysteries of the calendar, revealing the hidden times of God.
-Pirkei DeRabbi Eliezer, Chapter 43
The coming of the Messiah will not occur until the measure is full, as it is said, ‘In its time I will hasten it’ (Isaiah 60:22). The school of Eliyahu interpreted this to mean: In its appointed time if they are not worthy; but hastened if they are righteous.
-Pesikta de-Rav Kahana 5:9