According to search-discovered classical Islamic scholarship, the term 'Devils' (Shayateen) refers to a class of rebellious beings, primarily from the Jinn, whose definitive leader is Iblis. The etymological root of Shaytan, as noted by linguists like Al-Tabari, signifies being 'distant' from Allah's mercy. Ibn Kathir's tafsir on verses like 2:102 and 6:112 clarifies that the term can also describe any rebellious human or jinn who actively promotes evil. Their primary function, as detailed across the Quran, is to act as a clear enemy to humanity (Quran 35:6), inciting sin through subtle whispers (waswasa) and deception. This enmity is rooted in Iblis's arrogant refusal to bow to Adam. While they are associated with teaching forbidden acts like magic (Quran 2:102), Islamic theology asserts they have no ultimate power over sincere believers and operate only by Allah's permission as a test for mankind.