The Passion Predictions aren't authentic
The authority, among modern scholars, for this view is to be found in the form critical analyses and conclusions of Rudolf Bultmann. Christian tradition, he affirms, took over certain Jewish materials and put them on the lips of Jesus (e.g. the Marcan Apocalypse): the Christian community also revised or reworked elements from older traditions (e.g. the interpretation of the Sign of Jonah in connection with the person of Jesus, Matt. xii. 40) and even formed logia which reflect its own interests and concerns. Such logia are 'inauthentic' (in the sense that they are not genuine dominical sayings) and, according to Bultmann, they may originally have gained currency as utter ances of the Spirit in the Church, without their ascription to Jesus being initially intended. Sayings like Rev. xvi. 5 (in which the risen Christ speaks) and Rev. iii. 20 show clearly the process of the creation (or, reformulation) of such logia {den Prozefi der Meubildung solcher Herrenworte). These saying...
