THE AGENCY OF EVIL SPIRITS - GOOD VS EVIL - LIGHT VS DARKNESS

Do angels exist? What about demonic fallen angels? Do spirits of dead people, ghosts and paranormal entities exist?
What is the role of these angels which are good & the ones which are evil? What is the relation of these entities with man throughout history?
How are these entities involved in this great controversy between Christ & Satan - between Man & Satan - between Good & Evil - Between Light & Darkness -
Do we even acknowledge a evil force at play who has subtly deceived many into believing he does not exist and the whole of life is a game of chance??
What does the Bible say about the Great Controversy between Good & Evil? Who are the literal evil players today who are outwardly revealing their character? Is it just evil people or is it a controversy which includes spiritual entities from higher realms invisible to the physical eye.
Test the principles of God & his character as demonstrated by the Biblical Record in comparison to Satan & his character and then look around you and you will know everybody by their fruits. ** Character is demonstrated in a crisis **

The connection of the visible with the invisible world, the ministration of angels of God, and the agency of evil spirits, are plainly revealed in the Scriptures, and inseparably interwoven with human history. There is a growing tendency to disbelief in the existence of evil spirits, while the holy angels that “minister for them who shall be heirs of salvation” (Hebrews 1:14) are regarded by many as spirits of the dead. But the Scriptures not only teach the existence of angels, both good and evil, but present unquestionable proof that these are not disembodied spirits of dead men.