Despite how people may think, there are not four gospels in the Bible; there’s only one. Matthew, Mark, Luke, and John do not each speak of a different gospel. In fact, there is no gospel of any of these these writers. The only gospel there is is that of Jesus Christ who was born of the virgin Mary, executed on the cross by Pontius Pilate, died, was buried, and rose from the dead on the third day for your sins. Perhaps the books of our four gospel writers would better be listed as “Mark’s Account of the Gospel of Jesus Christ” as opposed to the “The Gospel of Mark.”
Remember, there’s only one gospel and if anyone comes to you preaching another, let him be anathema.