Gadreel (Heb. גדר האל gader ha-el, lit. “wall of God“) is listed as one of the chiefs in the fallen grigori of angels. This is depicted in the second section of the “Book of Enoch“; “Parables”. He is said to have been responsible for teaching man warfare. This contradicts the first section of Enoch, which claims that Azazel was responsible for doing this.[1]
Gadreel was mentioned as the third of five “satans” who led other angels into copulating with humans, leading to the creation of the giant-like Nephilim. The others were called Yeqon(or Yaqum, Aram. “he shall rise”), Asbeel (“deserter from God”), Penemue (“the inside”), and Kasdaye (“Chaldean“, “covered hand”).