Contents1 Introduction: The Dismantling and Reassembling of the Categories of New Testament Scholarship2 Kerygma and History in the New Testament3 LOGOI SOPHON: On the Gattung of Q4 GNOMAI DIAPHOROI: The Origin and Nature of Diversification in the History of Early Christianity5 One Jesus and Four Primitive Gospels6 The Structure and Criteria of Early Christian Beliefs7 The Johannine Trajectory8 Conclusion: The Intention and Scope of Trajectories