(Matthew 25:41,46) Then shall he say also unto them on the left hand, Depart from me, ye cursed, into everlasting fire, prepared for the devil and his angels: And these shall go away into everlasting punishment: but the righteous into life eternal.
(I John 3:8) 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.
Here we learn why God prepared a place of everlasting punishment – for the devil and his angels. It was not created for fallen man as we know that God desires all men to be saved and come to the knowledge of the truth (1 Timothy 2:4). Man chooses to go their on his own free will by rejecting Christ.