We begin by going to Isaiah 14:12 (KJV) where we observe God speaking to Satan:
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!
Lucifer, the archangel, was Satan’s name before God cut him down to the ground. This verse shows God asking Satan if he knows why he has fallen from Heaven, losing the job that he originally held, guarding God’s Throne.
Satan wronged God and Ezekiel 28:8-9 (KJV) shows God about to sentence him to his Second Death, the final one where God blots you out of existence. He is sentencing Satan to Hell because his only purpose for existing is to blaspheme God and convince us to follow him; God continues to address Satan:
They shall bring thee down to the pit, and thou shalt die the deaths of them that are slain in the midst of the seas.
God will bring Satan down to the Pit for a thousand years. He is then loosed for a little season before being destroyed by God.
Claiming to be God, Satan denies going to the Pit and God responds to him:
Wilt thou yet say before him that slayeth thee, I am God? but thou shalt be a man, and no God, in the hand of him that slayeth thee.
God, who slays Satan, reminds him that he is simply a man.
You see in Revelation 9:11 (KJV) that Satan is definitely the man whom scripture shows going to the Pit:
And they had a king over them, which is the angel of the bottomless pit, whose name in the Hebrew tongue is Abaddon, but in the Greek tongue hath his name Apollyon.
Both the Old and New Testament show this one going to the pit to be Satan, yet, with this being so, he continues to serve God. He seeing himself taking God’s place may contribute to him doing so; Isaiah 14:13-15 (KJV) continues:
For thou hast said in thine heart, I will ascend into heaven, I will exalt my throne above the stars of God: I will sit also upon the mount of the congregation, in the sides of the north:
This verse shows Satan without a stitch of fear. Refusing to accept God’s Truth, he sees himself returning to the Mount of Congregation, God’s most Holy Place.
Verse 14 contains Satan’s own words showing him continuing to hallucinate:
I will ascend above the heights of the clouds; I will be like the most High.
It is true that Satan does not admit to being brought down to the Sides of the Pit but verse 15 shows it to be precisely what happens:
Yet thou shalt be brought down to hell, to the sides of the pit.