" Acts as Historical Fiction The book of Acts has been all but discredited as a work of apologetic historical fiction.1 Nevertheless, its author (traditionally Luke, the author of the Gospel: see Chapter 7, §4) may have derived some of its material or ideas from earlier traditions, written or oral. But the latter would still be extremely unreliable (note, for example, the condition of oral tradition under Papias, as discussed in Chapter 8, §7) and wholly unverifiable (and not only because teasing out what Luke inherited from what Luke chose to compose therefrom is all but impossible for us now). Thus, our best hope is to posit some written sources, even though their reliability would be almost as hard to verify, especially, again, as we don’t have them, so we cannot distinguish what they actually said from what Luke added, left out, or changed. "

― Richard C. Carrier , On the Historicity of Jesus: Why We Might Have Reason for Doubt