To begin with, with the possible exception of the gospel of Luke, none of the gospels we have were written by the person after whom they are named. That actually is true of most of the books in the New Testament. Such so-called pseudepigraphical works, or works attributed to but not written by a specific author, were extremely common in the ancient world and should by no means be thought of as forgeries. Naming a book after a person was a standard way of reflecting that person’s beliefs or representing his or her school of thought. Regardless, the gospels are not, nor were they ever meant to be, a historical documentation of Jesus’s life. These are not eyewitness accounts of Jesus’s words and deeds recorded by people who knew him. They are testimonies of faith composed by communities of faith and written many years after the events they describe.