Sanhedrin, fol. 97, col. 1.
As the land of Canaan had one year of release in seven, so has the world one millennium of release in seven thousand years; for it is said (Isa. ii. 17), "And the Lord alone will be exalted in that day;" and again (Ps. xcii. 1), "A psalm or song for the Sabbath day," which means a long Sabbatic period; and again (Ps. xc. 4), "For a thousand years in Thy sight are but as the day of yesterday."
Ibid.
Tradition records that the ladder (mentioned Gen. xxviii. 12) was eight thousand miles wide, for it is written, "And behold the angels of God ascending and descending upon it." Angels ascending, being in the plural, cannot be fewer than two at a time, and so likewise must those descending, so that when they passed they were four abreast at least. In Daniel x. 6 it is said of the angel, "His body was like Tarshish," and there is a story that Tarshish extended two thousand miles.
Chullin, fol. 91, col. 2.
The tithes from the herds of Elazer ben Azaryah amounted to twelve thousand calves annually.
Shabbath, fol. 54, col. 2.
It is said that Rabbi Akiva had twelve thousand pairs of disciples dispersed about between Gabbath and Antipatris, and all of them died within a short period because they paid no honor to one another. The land was then desolate until Rabbi Akiva came among our Rabbis of the south and taught the law to Rabbis Meir, Yehudah, Yossi, Shimon, and Elazer ben Shamua, who re-established its authority.
Yevamoth, fol. 26, col. 2.
After a lapse of twelve years, he returned accompanied by twelve thousand disciples, etc.