(Luk 8:30) And Jesus asked him, saying, What is thy name? And he said, Legion: because many devils were entered into him.
(Mat 4:1) Then was Jesus led up of the Spirit into the wilderness to be tempted of the devil.
(Mat 4:10) Then saith Jesus unto him, Get thee hence, Satan: for it is written, Thou shalt worship the Lord thy God, and him only shalt thou serve.
(Mar 1:13) And he was there in the wilderness forty days, tempted of Satan; and was with the wild beasts; and the angels ministered unto him.
There are many devils--even Jesus called him Satan----so it means adversary--he is THE adversary--he is referred to as THE devil--Jesus didn't call him by any other name. And Christ didn't pursue the matter of the names of the Legion--the terms have been interchangeable, Satan--THE devil--singular, as he is the main evil, the one that brought the others to their rebellion against God.
The verse about the sons of God finding the daughters of men fair means quite simply that the those men were followers of God--but they chose women who were not followers of God--unequally yoked. Nothing else! That eventually led to the whole population being so evil God had to destroy them all except for 8.
There are 3 little words God said after the creation which makes breeding between the species impossible--"After his kind."---no bird men, no horses with human torsos, no angel/human crossbreeds---that is simply imagination gone wild. There is no mention of angels being able to procreate--they are an entirely different breed--we are made in the image of God--They are not. People are making them into sexual partners for humans--absurd--and even if that were possible---where are those offspring now, if the demons were able to father children with humans then, then they should be able to do so now--what made them quite??--they been celibate this long after having been bedmates with us?? Haven't seen a bunch of really tall creatures with wings hanging around lately--haven't seen any humans born with wings except in the movies. God made earthly creatures to mate and populate the world--the angels are not made in the image of God, they are made as servants and messengers to God--it is humans who have given them sexuality when they have none. That is not in any way why they fell, they fell from listening to Lucifer instead of God, and he fell because of wanting to be God.
Some man claiming to be Enoch has been telling you what to think--here is also the gospel of Judas, the books that claim Jesus was married--you believe those too??
I must disagree here. There were no demons until after the flood. The demons are the souls of the deceased Nephilim. The "sons of God" are, in fact, fallen angels that left their first estate and had children with human women. The nephilim were human/angel hybrids and their souls are now the evil spirits and demons talked about in scripture and other literature. This is why demons show up after the flood and not before. Angels are angels, they don't die and therefore are always in that state, however they are either fallen or committed to God.
The "Book of Enoch" is not canonized scripture however, neither is any of the writings of Socrates, Leonardo De Vince, Plato, and they are taken at face value and are very informative and useful.
The "Book of Enoch" can be compared, or paralleled with "the Book of Jasher" and the "Book of Jubilee" These three compilations are used extensively when researching Biblical events. They parallel the Bible in astonishing ways. The book of Enoch is also quoted in the Biblical book of Jude:
Jude 1:14International Standard Version (ISV)
14 Enoch, in the seventh generation from Adam, prophesied about these people when he said,
Look! The Lord has come with countless thousands of his holy ones.
In my opinion, if the Bible quotes it, it must have some merit.
In this book, written by the only man that so touched God's heart that He took him away and he didn't die, is the account of the nephilim and the fact that these fallen angels set into motion a avalanche of corruption that affected "all flesh":
Genesis 6:12
And God looked upon the earth, and, behold, it was corrupt; for
all flesh had corrupted his way upon the earth.
and resulted in God wiping out all living things accept for Noah, his wife, his three sons and their wives. Noah's family was the only pure bloodline left. This is why God choose him and his family.
I wouldn't be so quick to throw out these books. They are a fantastic lens into the ancient times and, in the case of the Book of Enoch, some very interesting prophecy and windows into creation and the heavenly world. Enoch had a revelation not unlike that of John with his book which is the Revelation of Jesus Christ to John