Sources: Mark 1–16; Papias of Hierapolis (~130 AD) in Eusebius; 2 Peter 1:15 (Peter’s death approaching).

The Gospel of Mark (~70–75 AD) is almost certainly the earliest canonical Gospel and the primary source used by Matthew and Luke (Markan priority is the consensus of modern scholarship). Its distinctive features: (1) The Messianic Secret — Jesus repeatedly commands silence about his identity (1:44, 3:12, 5:43, 7:36, 8:30) — William Wrede’s analysis (1901) argued this was Mark’s theological device to explain why Jesus was not recognized as Messiah during his lifetime; (2) The urgency of the narrative — the Greek word euthus (“immediately”) appears ~40 times, creating a breathless pace; (3) The disciples’ incomprehension — unlike Matthew and Luke, Mark’s disciples are persistently dense about who Jesus is; (4) The abrupt ending (16:8) — the women flee the empty tomb and “said nothing to anyone, for they were afraid” — the most dramatic ending in ancient literature; later manuscripts add endings (16:9–20) absent from the earliest manuscripts; (5) Papias of Hierapolis (~130 AD) attributes Mark’s Gospel to “the interpreter of Peter” who wrote down Peter’s teachings accurately but not in order. If Mark is writing after Peter’s death (~64 AD), the Gospel preserves the Petrine tradition for a community that has lost its eyewitness.