Derek Gilbert, claim to have discovered any, but merely that he has done a fantastic job of connecting ancient Near Eastern pagan mythology and history to Sacred Scripture and ancient Enochian literature, such as the apocryphal book of Enoch and the Enochian fragments of the Dead Sea Scrolls. Derek is not alone in this particular field of study, as we also find such stellar biblical scholars as Dr. Michael Heiser engaged in very similar studies and lectures.
If you are a student of early Christianity, you will find that much of what Derek shares is reflected in the writings of the Ante-Nicene Fathers, so he is not revealing something new, but restoring to our modern understanding something quite old, that stretches back to such men as Tertullian, Irenaeus, Justin Martyr, Ambrose, Clement of Rome, and Lactantius. I recommend those interested in going deeper into biblical research than is typical, to view this series of lectures slowly and deliberately, taking notes and frequently checking your Bible as Derek explores what it has to say about the pagan gods, fallen angels, the history of the ancient Near East, and Sacred Scripture. I pleasantly gained more knowledge, and trust that you will as well.