The Gnostic, Nag Hammadi 'Gospels'.

Gnosis: Knowledge to them was not an intellectual exercise; it was not a passive understanding of some aspect of spirituality. Rather, knowledge had a redeeming and liberating function that helped the individual break free of bondage to the world. RT.
There can be little wonder that the Church wanted to excise this canker from its fringes.
The idea that salvation effectively arises from knowledge - and esoteric knowledge at that - is repugnant.
That the forces of darkness wish to trawl through the dustbins of history to divert our paths should not surprise us.
Once one has met The Risen Saviour - you can see through all this rubbish - and instantly.