The Bible refers to a second group of demons who are permanently imprison because of the exceptionally gross nature of their sin. According to ( Jude 6, ) these are angels who did not keep their own domain, but abandoned their proper abode. They are being Kept in eternal bonds under darkness for the judgment of the great day. Peter writes of these demons that God did not spare angels when they sinned, but cast them into hell and committed them to pits of darkness, reserved for judgment ( 2 Peter 2:4 ) What is the proper abode of angels? Heavenly places, the spiritual realm. These angels left that sphere when they came down to earth to commit an especially wicked sin. We referred to that sin earlier, the time when these angels cohabited with women and produced a mutant race of giants ( Genesis 6:1-4 ). This was Satan’s race that he hoped would take over. But God found a faithful man in Noah, defeated Satan, and destroyed this evil race of men. For leaving their proper abode after creation and committing that sin, these angels were cast into eternal fire and eternal judgment, locked up with no possibility of release or parole forever.