Matthew 24:36
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.
Sanhedrin 99a
Babylonian TalmudThe 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.
Notes and References
"... Evidence of the difference between God's limbs, which are His angels, and God's essence, can also be found elsewhere: 'What is meant by the day of vengeance is in mine heart' (Isaiah 63:4) Rabbi Johanan said: I have revealed it to my heart, but not to my limbs. R. Simeon b. Lakish said: I have revealed it to my heart, but not to the ministering angels.' (Sanhedrin 99a) ... The angels can be perceived simultaneously as external entities serving God and as His limbs or His attributes. Similarly the heart, God's internal spirituality as against angels and limbs, can be perceived in another context as 'prince of the world,' despite the latter's angelic character, or even as identical with the earth. In an ancient parallel version of this statement, God's Son replaces the heart. I am referring to Jesus' statement in the New Testament (Matthew 24:36; Mark 13:32): 'But of that day and hour no one knows, not even the angels of heaven, nor the Son, but the Father only.' Contrary indeed to the talmudic heart, here the secret is not even revealed to the Son; nevertheless, his role is that of an intermediate entity, more worthy of knowledge than the angels. Thus, this myth appears in many variations, even if we choose to disregard the last passage due to its different literary source ..."
Liebes, Yehuda Studies in Jewish Myth and Jewish Messianism (p. 34, 46) State University of New York, 1993