Demons

A demon is an evil spirit being whose purpose is to torment sentient living beings who desire to live a righteous life, usually through temptation with things that the person desires to have, no matter how evil or holy that thing appears to be. According to what certain Christians believe, demons were most likely the angels that chose to side with Lucifer when he made war in the heavens with God and the angels that chose His side, that were cast down to Earth along with Lucifer when they could not prevail against Him. The King James Version of the Bible refers to demons as devils.