There is nothing new under the sun.

For what has been done is what will be done, and there is nothing new under the sun.

Genesis 6:1-2, 4 ESV

When man began to multiply on the face of the land and daughters were born to them, the sons of God ( Angels ) saw that the daughters of man (Women) were attractive. And they took as their wives any they chose. The Nephilim were on the earth in those days, and also afterward, when the sons of God came in to the daughters of man and they bore children to them. These were the mighty men who were of old, the men of renown.

And Daniel says:

Daniel 12:1-4, 7-10, 13 ESV

“At that time shall arise Michael, the great prince who has charge of your people. And there shall be a time of trouble, such as never has been since there was a nation till that time. But at that time your people shall be delivered, everyone whose name shall be found written in the book. And many of those who sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt. And those who are wise shall shine like the brightness of the sky above; and those who turn many to righteousness, like the stars forever and ever. But you, Daniel, shut up the words and seal the book, until the time of the end. Many shall run to and fro, and knowledge shall increase.”  And I heard the man clothed in linen, who was above the waters of the stream; he raised his right hand and his left hand toward heaven and swore by him who lives forever that it would be for a time, times, and half a time, and that when the shattering of the power of the holy people comes to an end all these things would be finished. I heard, but I did not understand. Then I said, “O my lord, what shall be the outcome of these things?” He said, “Go your way, Daniel, for the words are shut up and sealed until the time of the end. Many shall purify themselves and make themselves white and be refined, but the wicked shall act wickedly. And none of the wicked shall understand, but those who are wise shall understand. But go your way till the end. And you shall rest and shall stand in your allotted place at the end of the days.”

The book of Enoch was the book that was shut up until the time of end is coming up: But you, Daniel, shut up the words and seal the book, until the time of the end. Many shall run to and fro, and knowledge shall increase.”
The book of Enoch,  teaches that God appointed 200 hundred watchers, which are what we call Angels today, but they are considered the fallen Angel's that corrupted the human race, by mating with the women of man read Genesis 6:4. And they taught mankind things that were an obmeniation to God. They created half human and animals and tried to corrupt the human race,  therefore Jesus (Yeshua) could not be born.

That is why the flood story came about, for the fallen Angel made themselves to be Gods. Now they try to say they are Aliens. 

Other times they are mentioned in the Bible. 

Numbers 13:32-33 ESV

So they brought to the people of Israel a bad report of the land that they had spied out, saying, “The land, through which we have gone to spy it out, is a land that devours its inhabitants, and all the people that we saw in it are of great height. And there we saw the Nephilim (the sons of Anak, who come from the Nephilim), and we seemed to ourselves like grasshoppers, and so we seemed to them.”

These were the Giant's,  the son's of the Son's of God ( Angels ) mating with the women of man. 

Ephesians 2:1-3 ESV

And you were dead in the trespasses and sins in which you once walked, following the course of this world, following the prince of the power of the air,  (which is he who we call the DEVIL) the spirit that is now at work in the sons of disobedience— among whom we all once lived in the passions of our flesh, carrying out the desires of the body and the mind, and were by nature children of wrath, like the rest of mankind.

Ephesians 6:11-18 ESV

Put on the whole armor of God, that you may be able to stand against the schemes of the devil. For we do not wrestle against flesh and blood, but against the rulers, against the authorities, against the cosmic powers over this present darkness, against the spiritual forces of evil in the heavenly places. (The Devil and his followers) Therefore take up the whole armor of God, that you may be able to withstand in the evil day, and having done all, to stand firm. Stand therefore, having fastened on the belt of truth, and having put on the breastplate of righteousness, and, as shoes for your feet, having put on the readiness given by the gospel of peace. In all circumstances take up the shield of faith, with which you can extinguish all the flaming darts of the evil one; and take the helmet of salvation, and the sword of the Spirit, which is the word of God, praying at all times in the Spirit, with all prayer and supplication. To that end keep alert with all perseverance, making supplication for all the saints,

Jude 1:5-11 ESV

Now I want to remind you, although you once fully knew it, that Jesus, who saved a people out of the land of Egypt, afterward destroyed those who did not believe.

Pay attention: it says,

And the angels who did not stay within their own position of authority, but left their proper dwelling, he has kept in eternal chains under gloomy darkness until the judgment of the great day— just as Sodom and Gomorrah and the surrounding cities, which likewise indulged in sexual immorality and pursued unnatural desire, serve as an example by undergoing a punishment of eternal fire.  Yet in like manner these people also, relying on their dreams, defile the flesh, reject authority, and blaspheme the glorious ones. But when the archangel Michael, contending with the devil, was disputing about the body of Moses, he did not presume to pronounce a blasphemous judgment, but said, “The Lord rebuke you.” But these people blaspheme all that they do not understand, and they are destroyed by all that they, like unreasoning animals, understand instinctively. Woe to them! For they walked in the way of Cain and abandoned themselves for the sake of gain to Balaam’s error and perished in Korah’s rebellion.

2 Corinthians 11:12-15 ESV

And what I am doing I will continue to do, in order to undermine the claim of those who would like to claim that in their boasted mission they work on the same terms as we do. For such men are false apostles, deceitful workmen, disguising themselves as apostles of Christ. And no wonder, for even Satan disguises himself as an angel of light. So it is no surprise if his servants, also, disguise themselves as servants of righteousness. Their end will correspond to their deeds.

Ecclesiastes 1:9 ESV

What has been is what will be, and what has been done is what will be done, and there is nothing new under the sun.

Don't believe the Lies, for there will be a great deception upon mankind.

Trust in the Lord with all your heart.

God bless you all

Lady Dee