CODEX Entry 1110: Irin
In ancient Aramaic, עִירִין ‘iyrin’, means guards or watchers, also called Gregori, countless soldiers of human appearance. The irin were associated with biblical angels¹, dispatched to Earth to watch over humans. The three Books of Enoch, dated from the 1st to 3rd century BC², mainly focus on the fall of the watchers, briefly alluded to in Genesis 6. Here angels are described as mating with human females, giving rise to a race of hybrids, known as the Nephilim. The irin, it said, began to lust after human women, and their leader, Samyaza, with the gods temporarily absent, persuades them all to live in luxury amongst humanity as their rulers.
Samyaza and his associates further taught their humans arts and technologies such as weaponry, cosmetics, mirrors, sorcery, and other techniques. Eventually God generates a Great Flood to rid the earth of the Nephilim, but first sends Uriel to warn Noah so as not to eradicate the human race. The rebellious watchers are put in chains bound until they have received their Judgment³. fragments in the Dead Sea Scrolls indicate that The Book of Enoch was known by Jews and early Christians, and it was quoted in the Testaments of the Twelve Patriarchs.
References:
¹ Dan. 4:13, 17, 23
² Josef T. Milik, The Books of Enoch: Aramaic Fragments of Qumran
³ Jude v.6