34 I tell you the truth, this generation will not pass away until all these things take place. 35 Heaven and earth will pass away, but my words will never pass away. 36 “But as for that day and hour no one knows it—not even the angels in heaven—except the Father alone. 37 For just like the days of Noah were, so the coming of the Son of Man will be. 38 For in those days before the flood, people were eating and drinking, marrying and giving in marriage, until the day Noah entered the ark.

The Gemara asks: What is the meaning of the phrase: “For the day of vengeance is in My heart”? Rabbi Yoḥanan says that it means that God said: I revealed the day of vengeance to My heart, but I did not reveal it to My limbs, as it were, as I never stated it explicitly. Rabbi Shimon ben Lakish says that it means that God said: I revealed this secret to My heart, but I did not reveal it to the ministering angels. Avimi, son of Rabbi Abbahu, taught: The messianic era for the Jewish people will last seven thousand years, as it is stated: “And as the bridegroom rejoices over the bride, so shall your God rejoice over you” (Isaiah 62:5). The bridegroom rejoices over the bride for seven days, and the day of the Holy One, Blessed be He, is one thousand years.