1 Enoch 46:1
1 And there I saw One who had a head of days, and His hair was white like wool. With Him was another being whose countenance resembled that of a man, and his face was full of graciousness, like one of the holy angels. 2 And I asked the angel who accompanied me and showed me all the hidden things, about that Son of Man, who he was, where he was from, and why he accompanied the Head of Days? The angel answered and said to me: 'This is the Son of Man who possesses righteousness, with whom righteousness dwells, and who reveals all the hidden treasures, because the Lord of Spirits has chosen him, and his status is foremost before the Lord of Spirits in uprightness forever.'
Revelation 1:13
10 I was in the Spirit on the Lord’s Day when I heard behind me a loud voice like a trumpet, 11 saying: “Write in a book what you see and send it to the seven churches—to Ephesus, Smyrna, Pergamum, Thyatira, Sardis, Philadelphia, and Laodicea.” 12 I turned to see whose voice was speaking to me, and when I did so, I saw seven golden lampstands, 13 and in the midst of the lampstands was one like a son of man. He was dressed in a robe extending down to his feet, and he wore a wide golden belt around his chest. 14 His head and hair were as white as wool, even as white as snow, and his eyes were like a fiery flame. 15 His feet were like polished bronze refined in a furnace, and his voice was like the roar of many waters. 16 He held seven stars in his right hand, and a sharp double-edged sword extended out of his mouth. His face shone like the sun shining at full strength.
Notes and References
"... It is necessary to pay close attention to the movement of this short but absolutely crucial text, for it enables us to see in microcosm the way that the simile becomes a Redeemer. We can observe three syntactically and semantically differing usages of the term and concept, “Son of Man”, in the space of three sentences. The first two sentences are simply a gloss, or even midrash, on our Daniel text, 7:9, 10, 13. There are here, just as in Daniel and in almost the same wording, two divine figures, one again who is ancient and one who has the appearance of a man, the appearance of a “son of man”, a young man, according to my hypothesis. Enoch feels a necessity to understand this appearance. It is clear that he knows exactly who the “Head of Days” is but wonders who is that Son of Man ... The text goes on to describe the messianic and other activities and traits of the Son of Man, activities and traits that draw, as we shall see, from several aspects of biblical tradition, and which are familiar from the figure of Jesus as well. This Son of Man text is, however, typologically earlier than the Gospels in that the close connection with the exegetical source in Daniel is maintained throughout. Let me make clear what I mean by this by citing another clear and well-known example: In the canonical book of Revelation 1:12-14 ... Note that for the writer of Revelation, as in the book of Daniel itself, “One Like a Son of Man” is merely a simile, a figure of speech to indicate the countenance of a divine figure. The book of Revelation is almost certainly chronologically later than the canonical Gospels, but in its use of the Daniel passage here, it is closer to the original ..."
Boyarin, Daniel How Enoch can Teach us About Jesus (pp. 58-60) Mohr Siebeck, 2011