Who is satan?
Isaiah 14:12 KJV
How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down to the ground, which didst weaken the nations!
Revelation 12:9-10 KJV
9 And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.
10 And I heard a loud voice saying in heaven, Now is come salvation, and strength, and the kingdom of our God, and the power of his Christ: for the accuser of our brethren is cast down, which accused them before our God day and night.
2 Corinthians 11:14 KJV
And no marvel; for Satan himself is transformed into an angel of light.
1 Peter 5:8 KJV
Be sober, be vigilant; because your adversary the devil, as a roaring lion, walketh about, seeking whom he may devour:
1 John 3:8 KJV
He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.
John 8:44 KJV
Ye are of your father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it.
John 10:10 KJV
The thief cometh not, but for to steal, and to kill, and to destroy: I am come that they might have life, and that they might have it more abundantly.
Ephesians 6:12 KJV
For we wrestle not against flesh and blood, but against principalities, against powers, against the rulers of the darkness of this world, against spiritual wickedness in high places.
satan is Lucifer, the devil, a loser, pure evil, the father of lies, the great deceiver, the accuser, a murderer, a thief, the destroyer and a pest. No good comes from him. He shows himself as an angel of light to deceive people. He also comes as a roaring lion seeking whom he may devour, but there is no bark to his bite if you know your authority in The Lord Jesus Christ.