Recent scholarship on the Fourth Gospel has suggested that this document was produced by a Christian community which was involved in an intense conflict with a local synagogue, the focus of which was christology. This study attempts to relate the Johannine prologue to this context, using Berger and Luckmann's model of legitimation . John's christological portrait of Jesus in the prologue is best understood in terms of the author's use of traditions and imagery which were authoritative to both him and his opponents, in order to defend the legitimacy of his and his community's beliefs. By looking at the prologue from this perspective, our understanding of the development of the distinctive Johannine portrait of Jesus is enhanced.