Secret Gospel of Mark
The Secret Gospel of Mark or the Mystic Gospel of Mark (Biblical Greek: τοῦ Μάρκου τὸ μυστικὸν εὐαγγέλιον, romanized: tou Markou to mystikon euangelion), also the Longer Gospel of Mark, is a putative longer and secret or mystic version of the Gospel of Mark. The gospel is mentioned exclusively in the Mar Saba letter, a document of disputed authenticity, which is said to have been written by Clement of Alexandria (c. AD 150–215).