Revelations 12:3-4,7-9, 12
Then another sign appeared in heaven: an enormous red dragon with seven heads and ten horns and seven crowns on its heads. 4 Its tail swept a third of the stars out of the sky and flung them to the earth….
7 Then war broke out in heaven. Michael and his angels fought against the dragon, and the dragon and his angels fought back. 8 But he was not strong enough, and they lost their place in heaven. 9 The great dragon was hurled down—that ancient serpent called the devil, or Satan, who leads the whole world astray. He was hurled to the earth, and his angels with him.
12Therefore rejoice, you heavens and you who dwell in them! But woe to the earth and the sea, because the devil has gone down to you! He is filled with fury, because he knows that his time is short.”
Angels were given free will and the devil chose to rebel against God. Evil is the result of the freedom to choose. One third of the angels followed the devil and they are called demons who join the devil in leading the world away from God.
Here are the attributes and outcome of the devil:
Angel of light
2 Corinthians 11:14-15 And no wonder, for Satan himself masquerades as an angel of light. 15 It is not surprising, then, if his servants also masquerade as servants of righteousness. Their end will be what their actions deserve.
John 8:44 You belong to your father, the devil, and you want to carry out your father’s desires. He was a murderer from the beginning, not holding to the truth, for there is no truth in him. When he lies, he speaks his native language, for he is a liar and the father of lies.
Jesus’ to destroy devil’s work
1 John 3:8-8 The one who does what is sinful is of the devil, because the devil has been sinning from the beginning. The reason the Son of God appeared was to destroy the devil’s work.
Will be bound 1000 yrs
Revelation 20:2 He seized the dragon, that ancient serpent, who is the devil, or Satan, and bound him for a thousand years.
Let loose for short time then thrown into eternal hell
Revelation 20:10 And the devil, who deceived them, was thrown into the lake of burning sulfur, where the beast and the false prophet had been thrown. They will be tormented day and night for ever and ever.