Is it Revelation 12 that talks of the war in Heaven, when Satan - originally known as Lucifer - rebelled against God
He, & the other fallen angels - (ie, demons) - were cast out of Heaven
Satan's origin as an angel, & how pride made Him rebel, are also in Isaiah 14 & Ezekiel 28
12 How you have fallen from heaven,
O morning star, son of the dawn!
You have been cast down to the earth,
you who once laid low the nations!
13 You said in your heart,
"I will ascend to heaven;
I will raise my throne
above the stars of God;
I will sit enthroned on the mount of assembly,
on the utmost heights of the sacred mountain. [c]
14 I will ascend above the tops of the clouds;
I will make myself like the Most High."
15 But you are brought down to the grave,
to the depths of the pit.
16 Those who see you stare at you,
they ponder your fate:
"Is this the man who shook the earth
and made kingdoms tremble,
17 the man who made the world a desert,
who overthrew its cities
and would not let his captives go home?"
Ezekiel 28 (New International Version)
A Prophecy Against the King of Tyre
1 The word of the LORD came to me: 2 "Son of man, say to the ruler of Tyre, 'This is what the Sovereign LORD says:
" 'In the pride of your heart
you say, "I am a god;
I sit on the throne of a god
in the heart of the seas."
But you are a man and not a god,
though you think you are as wise as a god.
3 Are you wiser than Daniel [a] ?
Is no secret hidden from you?
4 By your wisdom and understanding
you have gained wealth for yourself
and amassed gold and silver
in your treasuries.
5 By your great skill in trading
you have increased your wealth,
and because of your wealth
your heart has grown proud.
6 " 'Therefore this is what the Sovereign LORD says:
" 'Because you think you are wise,
as wise as a god,
7 I am going to bring foreigners against you,
the most ruthless of nations;
they will draw their swords against your beauty and wisdom
and pierce your shining splendor.
8 They will bring you down to the pit,
and you will die a violent death
in the heart of the seas.
9 Will you then say, "I am a god,"
in the presence of those who kill you?
You will be but a man, not a god,
in the hands of those who slay you.
10 You will die the death of the uncircumcised
at the hands of foreigners.
I have spoken, declares the Sovereign LORD.' "
11 The word of the LORD came to me: 12 "Son of man, take up a lament concerning the king of Tyre and say to him: 'This is what the Sovereign LORD says:
" 'You were the model of perfection,
full of wisdom and perfect in beauty.
13 You were in Eden,
the garden of God;
every precious stone adorned you:
ruby, topaz and emerald,
chrysolite, onyx and jasper,
sapphire, turquoise and beryl. [c]
Your settings and mountings [d] were made of gold;
on the day you were created they were prepared.
14 You were anointed as a guardian cherub,
for so I ordained you.
You were on the holy mount of God;
you walked among the fiery stones.
15 You were blameless in your ways
from the day you were created
till wickedness was found in you.
16 Through your widespread trade
you were filled with violence,
and you sinned.
So I drove you in disgrace from the mount of God,
and I expelled you, O guardian cherub,
from among the fiery stones.
17 Your heart became proud
on account of your beauty,
and you corrupted your wisdom
because of your splendor.
So I threw you to the earth;
I made a spectacle of you before kings.
18 By your many sins and dishonest trade
you have desecrated your sanctuaries.
So I made a fire come out from you,
and it consumed you,
and I reduced you to ashes on the ground
in the sight of all who were watching.
19 All the nations who knew you
are appalled at you;
you have come to a horrible end
and will be no more.' "
Satan is called the destroyer - (the meaning of both Apollyon & Abaddon) - in Revelation 9
He even hates satanists, witches, mediums: he is out to destroy all human lives
But the Bible makes it clear that God loves every human: that's why Jesus came, as the Almighty Creator in human form, to pay the penalty for every sin
'God does not take pleasure in the death of anyone, but desires that all should repent & believe the gospel'
Hope that helps!
Ian