The Johannite studies put forward four fundamental orientations. An enquiry into the sources of the fourth Gospel will help the exegete in unravelling the complexity of meaning of the Logos and its affinity with the gnose. This historical approach enables him to evaluate the manifold contribution of diachrony and synchrony, and to appreciate the literary and theological aspects of the text: style and theology point to the «unique». This would favour the attribution of John's Gospel to the priest John, who died in Ephesus at an advanced age, rather than to Zebedee's son. A conclusion draws four axes of interpretation: the relationship between Greeks and Jews, the history of the service of unity, the glorified love, the tradition of the Scripture.
