ms to the various psychologies of antiquity, and brought their scattered elements of truth to full focus. The tendency of Christ's teaching was to centre all interest in the spiritual side of man's nature; the salvation or loss of the soul is the great issue of existence. The Gospel language is popular, not technical. Psyche and pneuma are used indifferently either for the principle of natural life or for spirit in the strict sense. Body and soul are recognized as a dualism and their values contrasted: "Fear ye not them that kill the body . . . but rather fear him that can destroy both soul and body in hell." In St. Paul we find a more technical phraseology employed with great consistency. Psyche is now appropriated to the purely natural life; pneuma to the life of supernatural religion, the principle of which is the Holy Spirit, dwelling and operating in the heart. The opposition of flesh and spirit is accentuated afresh (Romans 1:18, etc.). 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. Thus, the "newness of life", of which St. Paul speaks, was conceived by some as a superadded entity, a kind of oversoul sublimating the "natural man" into a higher species. This doctrine was variously distorted in the different Gnostic systems. The Gnostics divided man into three classes...
