Marcan priority is the hypothesis that the Gospel of Mark was the first of the three synoptic gospels to be written, and was used as a source by the other two. It is a central element in discussion of
Gottlob Christian Storr
Pasqualotto, St. Mark writes his Gospel at the dictation of St. Peter, 17th century
The gospels of Matthew, Mark, and Luke are referred to as the synoptic Gospels because they include many of the same stories, often in a similar sequence and in similar or sometimes identical wording.
Marcan priority
…Marcan priority (or Markan priority) is the hypothesis that the Gospel of Mark was the first of the three synoptic gospels to be written, and was used as a source by the other two (Matthew and Luke). It is a central element in discussion of the synoptic problem—the question…
The calming of the storm is recounted in each of the three synoptic gospels, but not in John.
Christ cleansing a leper by Jean-Marie Melchior Doze, 1864
Mark writing his Gospel, from a medieval Armenian manuscript
A page of Griesbach's Synopsis Evangeliorum, which presents the texts of the synoptic gospels arranged in columns