Kegan Chandler has a Masters in Theology and is an amazing self-taught scholar, historian, theologian and fellow Biblical Unitarian. He has written a new book about the Theological beliefs and motivations of Constantine the Great. We talked about his conversation, Pagan Monotheism, Sol Invictus, Lucius Lactantius, Hermeticism, Neoplatonism, Augustine of Hippo, Eusebius (both of them), the Council of Nicea, Athanasius, Arian of Alexandria and more.   

The Book: https://books.google.com/books/about/Constantine_and_the_Divine_Mind.html?id=c8XLDwAAQBAJ&source=kp_book_description  

Kegan on "Homoousios": https://www.youtube.com/watch?v=UEvZjJr4dUU 

Kegan on Hermeticism and the Gospel of John: https://www.youtube.com/watch?v=M7auX3o9Z20