Back to Greek – Fr. Andrew Stephen Damick
Preparing for Patristic Greek – B-Greek: The Biblical Greek Forum
University of St. Thomas – Patristics / Patrology — The Early Church Fathers & Their Writings: Primary Sources –Original Languages – Grounded in the teachings and passion of Jesus Christ, early Christian theologians studied Jewish thought, Greek philosophy, and Greek and Latin vocabulary in their endeavour to explain complex Christian theological concepts.
Greek Apostolic Fathers – Android app.
PPS 44A – On the Incarnation, St. Athanasius – Greek & English diglot
ΠΕΡΙ ΙΕΡΩΣΥΝΗΣ, St. John Chrysostom – Latin Per Diem
The book used in the above videos. – Internet Archive