They interpreted the Holy Writs of alegrica form, in way that each declaration of the Holy Writs meant what to the interpreter he seemed made right more. They said to possess capacities and knowledge superior spirituals that the Christians do not possuam. The gnsticos follow leaders divulgadores of knowledge spiritual that exceed the normal agreement, generally considered private. Its teachings on the creation, the Christ and the salvation were so radically contrary to the apostlica pregao and the education of the Parents of the Church, that the churches of the Roman Empire had developed confessions of correct faith to be professed for all the converted ones, called Creeds. The central doctrine of the gnosticismo, was that the spirit is entirely good and the substance, entirely me. Of this antiBiblical dualism five important errors had flowed: 1. The body of the man, who is substance, is bad for this same reason. It must be differentiated of God, who is total spirit and, therefore total good.
2. The salvation is to escape of the body, being gotten by means of the faith in Christ, but by means of special knowledge. 3. The true humanity of Christ was denied in two ways: 1) some said that Christ only seemed to have body, and this theory was called docetismo, of the dokeo Greek (to seem); 2. Others said that the Christ the holy ghost joined it the man Jesus in the baptism, abandoning it before the death, theory this call cerintismo, according to name of its detached spokesman more, Cerinto. This form of gnosticismo is fought by Joo in 1Joo 1,1 ' ' What it was since the principle, what we hear, what we saw with our eyes, what we contemplate and our hands apalparam, regarding the Verb of vida' ' ; in 1Joo 4,2-3 ' ' In this you know the Spirit of God: all spirit that confesses that Jesus Christ came in meat is of God; all spirit that the Jesus does not confess is not of God; but it is the spirit of the Antichrist, regarding which you tend heard that it had to come; now already is in mundo' '.