Luke 1:1
Many have undertaken to draw up an account of the things that have been fulfilled among us — Luke's prologue is the only formal literary introduction in the Synoptic Gospels, framing what follows as a carefully researched historical narrative rather than an anonymous tradition. The many who have drawn up accounts before him acknowledges the existence of prior Gospel-writing projects, including Mark and possibly other sources. The things that have been fulfilled (peplerophoremenon) communicates that these events are not merely historical but the completion of a divine plan long promised — the fulfillment of Scripture's trajectory.