According to tradition and some early church writers, the author is
Mark the Evangelist, the companion of the
apostle Peter.
[6] The gospel, however, appears to rely on several underlying sources, varying in form and in theology, which
tells against the tradition that the gospel was based on Peter's preaching.
[7] Some of the stories in the gospel may have been transmitted orally before being written down.
[8] Various elements within the gospel suggest that the author wrote in Syria or Palestine for a non-Jewish Christian community.