Jude 7 "Even as Sodom and Gomorrah, and the cities about them, in like manner giving themselves over to fornication, and going after strange flesh, are set forth for an example, suffering the vengeance of eternal fire."
Going after strange flesh means to go after what is NOT natural. What this means is that a Homosexual man will "go after" or have sexual relations with another man and the same as a woman "going after" or having sexual relations with another woman. Yahweh is also using Sodom and Gomorrah and the cities around them as a warning (example) to everyone that gives their self over to fornication and strange flesh, that they will also suffer the vengeance of eternal fire.
Jude 8 "Likewise also these filthy dreamers defile the flesh, despise dominion, and speak evil of dignities."
This verse is explaining to us that there are men and women that are under the influence of evil spirits, and these evil spirits will speak of things that "defile the flesh".
Don't tell me this is not true, because if you know the Word of God then you should know the story about Christ casting out demons in a man and placing them into pigs (Matthew 8:31).
There are many other verses in the Word of God that tells us about unclean spirits, as an example, please read: 1 John 4:1-3 Matthew 12:43.
These evil spirits "despise" everything that is holy and part of the dominion of Jesus Christ. They also want to destroy the Holy matrimony of marriage between man and woman. They are "filthy dreamers" and go against God's Word. They promote Homosexuality and all forms of fornication.
These evil spirits promote the doctrine of Satan instead of the Word of God.
These evil spirits have no honor or respect for the Word of God, instead they continue to "speak evil of dignities".
There are people that will try to explain this verse (Jude 7) as not mentioning homosexuality at all. They will tell you that this was ONLY talking about "fallen angels" going after "strange flesh".
It is true, fallen angels did leave their first estate and came down to earth and had sex with women.
However, what you need to fully understand is that Jude is giving us all a warning. Jude is telling us that if "humans" decide to follow the ways of Satan and the fallen angels and go after strange flesh in like manner, giving themselves over to fornication, sodomy, (homosexual acts) that person will also suffer vengence of eternal fire!
Although the offspring of these fallen angels were destroyed, their "spirits" continue on today and can take over or enter (consume) a person and these are the "evil spirits" that are filthy dreamers, defile the flesh, despise dominion, and speak evil of dignities."
You see folks we are in a spiritual battle with evil spirits-demons.
God tells us to put on the whole armour of God, we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places. (Ephesians 6:10-20)
Evil spirits can deceive us:
Revelation 16:14 For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.
We are even told to test the spirits 1 John 4:1, 4.
The time is now to put on the whole armor of God!!
Now I beseech you, brethren, mark them which cause divisions and offences contrary to the doctrine which ye have learned; and avoid them.
For they that are such serve not our Lord Jesus Christ, but their own belly; and by good words and fair speeches deceive the hearts of the simple.