Just as John in Revelation tells (by his faith and the Holy Spirit) that the man (Son of Man) seen by Daniel (Daniel 10) is Jesus (before He was incarnated), so too Jude tells (by his faith and the Holy Spirit) that the Holy Great One seen by Enoch (Enoch chapter 1) is Jesus. Some pour doubt on passages in the Book of Enoch about the Son of Man because these passages are said not to be found among the Dead Sea Scrolls fragments of the Book of Enoch. However Jude uses chapter 1 and clarifies from it that the Great One seen by Enoch is this Holy Great One who will come in the clouds at the end time (much like God Himself descended on Sinai): Jesus, the Lord.
Enoch 1
1. The words of the blessing of Enoch, wherewith he blessed the elect and righteous, who will be living in the day of tribulation, when all the wicked and godless are to be removed. 2. And he took up his parable and said--Enoch a righteous man, whose eyes were opened by God, saw the vision of the Holy One in the heavens, which the angels showed me, and from them I heard everything, and from them I understood as I saw, but not for this generation, but for a remote one which is for to come. 3. Concerning the elect I said, and took up my parable concerning them:
The Holy Great One will come forth from His dwelling,
4. And the eternal God will tread upon the earth, (even) on Mount Sinai,
And appear from His camp
And appear in the strength of His might from the heaven of heavens.
5. And all shall be smitten with fear
And the Watchers shall quake,
And great fear and trembling shall seize them unto the ends of the earth.
6. And the high mountains shall be shaken,
And the high hills shall be made low,
And shall melt like wax before the flame
7. And the earth shall be wholly rent in sunder,
And all that is upon the earth shall perish,
And there shall be a judgement upon all (men).
8. But with the righteous He will make peace.
And will protect the elect,
And mercy shall be upon them.
And they shall all belong to God,
And they shall be prospered,
And they shall all be blessed.
And He will help them all,
And light shall appear unto them,
And He will make peace with them.
9. And behold! He cometh with ten thousands of His holy ones
To execute judgement upon all,
And to destroy all the ungodly:
And to convict all flesh
Of all the works of their ungodliness which they have ungodly committed,
And of all the hard things which ungodly sinners have spoken against Him.
