The four Gospels — Matthew, Mark, Luke, and John — are not biographies in the modern sense, not straight histories, not mere collections of sayings, and not mythology. They constitute a distinct literary genre blending features of ancient bios (biographical narrative), OT historical narrative, and theological proclamation. Greek euangelion — "good news" or "glad tidings" — was originally used of announcements of military victory or imperial succession; the early Christians subverted the imperial term to declare the real good news: the victory of the crucified-and-risen Jesus over sin, death, and the powers.
Four observations shape careful reading of the Gospels. (1) Selected, not exhaustive. John explicitly says he selected from the evidence: "Jesus did many other signs in the presence of the disciples, which are not written in this book; but these are written so that you may believe" (John 20:30-31). Each evangelist shaped his material under the Spirit's guidance for specific purposes. (2) Thematic arrangement. The evangelists often organized events thematically rather than strictly chronologically. Matthew groups five teaching blocks; Luke arranges the travel narrative (9:51 - 19:27); John organizes around seven signs and seven "I am" sayings. This is not error; it is ancient historiographical convention. (3) Christological proclamation. The Gospels are not neutral reportage. Mark opens "The beginning of the gospel of Jesus Christ, the Son of God" — a confession of faith, not an academic thesis statement. Every detail is shaped by the author's theological concern to proclaim Jesus. (4) Historical at the foundation. While not modern biography, the Gospels are grounded in real history — real places, real people, real dates. Luke anchors his narrative in the reign of Caesar Augustus (Luke 2:1) and the governorship of Quirinius. The Gospels do not read like myths; they read like eyewitness testimony shaped to evangelistic purpose. Each Gospel tells the same story from a distinct angle, and reading all four gives the Church a four-dimensional picture of the one Christ.