Demons are the spirits of dead Nephilim.
That’s not in the Biblical canon
//
Like the trinity, it’s a concept proven indirectly.
Forgive me if I have confused you with others I have played whack a mole with.
Demons are spirit beings.
Fallen angels have bodies and were created.
Jesus said demons have no habitation ( bodies ) of their own.
The demonic spirits are not fallen angels.
Fallen angels do not posses men or animals.
The demonic spirits came from somewhere and if not created separate from angels their spirit had to come from somewhere.
The only source left are the spirits of the hybrid nephiliam that were killed in the flood.
Nephiliam are not eternal bodies like the angels, they die and their spirit remains.
Disembodied spirits that look for habitation.
If this does not convince you as proof, that’s fine, not a salvation issue.
Thank you for that nice reply.:-)