McCoy grew up in a deeply religious family and from an early age learnt about biblical stories before becoming interested in the occult which plays a large influence on the style and the lyrics of the band. A lot of McCoy's work also references Aleister Crowley, with one of Fields of the Nephilim's songs sharing a name with one of Crowley's novels.
Fields of the Nephilim's live performances are as interesting as the music itself, with McCoy hinting that they are magical or shamanic experiences. Check out Fields of the Nephilim's Mourning Sun live...