DEMONS, WHO ARE THEY?

An invisible wicked SPIRIT CREATURE, having super human powers. The FIRST to make himself one was SATAN. The name means : RESISTER, ADVERSARY. The chief adversary of GOD.
He was created perfect, righteous creature of GOD, and he had a different name.
JESUS CHRIST said of him : "THAT ONE WAS A MAN SLAYER WHEN HE BEGAN, and HE
DID NOT STAND FAST IN THE TRUTH, because TRUTH IS NOT IN HIM."
SATAN is a SPIRIT PERSON deviated into sin and degradation.
JAMES writes : "Each one is tried by being drawn out and enticed by his own desire. Then the desire,
when it has become fertile, gives birth to sin;  in turn, sin, when it has been accomplished, brings forth
death."
It was SATAN who spoke through the medium of a serpent, seducing Eve into disobedience to God's
command. In turn, Eve induced Adam to take the same rebellious course. Satan was a man slayer, for he thereby brought about the death of Adam and Eve, which,  in turn, brought sin and death to their offspring.
SATAN challenges the rightfulness and righteousness of GOD's SOVEREIGNTY. He constantly challenges GOD's servants with LACK OF INTEGRITY. Because of this, he has the title DEVIL,
which means : ACCUSER, SLANDERER."
Before the FLOOD of Noah's day, other angels of GOD left their proper habitation in the heavens, and
their assigned positions there and, materializing human bodies, came to dwell on earth, marrying human women and producing offspring called NEPHILIM. These rebellious angels, having left God's  service,
came under the control of SATAN. Hence Satan is called "the ruler of the demons."
The apostle PAUL associates Satan with "the wicked spirit forces in the heavenly places," and speaks of them as "THE WORLD RULERS OF THIS DARKNESS." As a governing force in THE INVISIBLE REALM immediately over the earth, he is "THE RULER OF THE AUTHORITY OF THE AIR." The apostle JOHN said that "THE WHOLE WORLD IS LYING IN THE POWER OF THE WICKED ONE." He is therefore "THE RULER OF THIS WORLD." That is why JAMES wrote that "THE FRIENDSHIP WITH THE WORLD IS ENMITY WITH GOD."