According to search-discovered classical Islamic scholarship, Iblis (إبليس) is the proper name of a jinn who, through an act of supreme arrogance, disobeyed a direct command from Allah and was cast out from His mercy. The Quranic narrative, detailed across more than 80 verses, identifies his sin as refusing to prostrate to Adam, arguing his own superiority as a being created from fire over one created from clay (Quran 7:12). Following this rebellion, he became the primary Shaytan (الشيطان), a term signifying an adversary or a rebellious tempter. Classical commentators like Ibn Kathir and Al-Tabari affirm that Iblis was never an angel but a pious jinn in their company, whose pride led to his fall. Thus, 'Iblis' refers to the specific entity, while 'Shaytan' describes his function as the declared enemy to humanity, who works through whispers (waswasa) and deception until the Day of Judgment, yet holds no true power over Allah's sincere servants.