Grigori 

Grigori : is the collective name for a group of angels who lost grace, they are also known as watchers.  Originally it is told that the Grigori were sent to look after, guide and assist man during the beginning of civilisation.  Sadly these angels were not suited to this job and instead of playing a positive role they began to teach man sciences that God had deemed to be forbidden.  These subjects included astrology, divination, herb craft and magic.  To compound this, they also began to lust after some of the women they were supposed to be guiding.  In order to cohabitate with these women they even assumed physical forms.  Although the church might argue that angels have no gender and therefore are unable to procreate anyway, the following excerpt from Genesis 6:4, points out that "the sons of God went to the daughters of men and had children by them".  The resulting half-breeds were named as the Nephilim.

This kind of bad angelic behaviour could not be tolerated and as a result the grigori were taken from their posts and imprisoned in a layer of heaven.  Although they appealed to Enoch to speak on their behalf to God, they remained bound for 70 generations.  As for the Nephilim, it has been suggested that one of the main reasons for the great flood, was not only to punish man, but to cleanse the earth of the half-bred creatures created from the union of fallen spirit and flesh.

See also: Angels Angel Magic, Angelolatry, Angelology, Angelophany, Archangels, Celestial, Celestial Bodies, Celestial Hierarchy, Celestial Light, Dionysius the Areopagite & Fallen Host. 

Useful Links
The House of Rites Website 

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