This Pauline system, presented to a world already prepossessed in favour of a quasi-Platonic Dualism, occasioned one of the earliest widespread forms of error among Christian writers – the doctrine of the Trichotomy. According to this, man, perfect man (teleios) consists of three parts: body, soul, spirit (soma, psyche, pneuma). Body and soul come by natural generation; spirit is given to the regenerate Christian alone.