Hundreds of early Christian texts have never been translated into English. Theosis Library is changing that — one text at a time.

The project name Theosis (θεωσις) comes from the Greek theological concept of divinization — the idea that humanity is called to participate in the divine nature. This concept sits at the heart of the earliest Christian debates: is divinity the exclusive property of Christ, or is it a spark within all beings waiting to be awakened? The texts in this library illuminate both sides of that ancient question.

For centuries, the writings of the Church Fathers — and the Gnostic texts they argued against — have been locked away in Greek and Latin, accessible only to specialists. Many have never appeared in English at all. Theosis Library brings these texts into modern English for the first time, with scholarly annotation and full transparency about methodology.

Each translation is produced by a classicist using AI-assisted drafting, then reviewed and corrected against the original Latin and Greek, with the translator’s own scholarly annotations. Every published text links back to the original source so readers and scholars can verify the work.

Recent Translations

  • The Book of Various Heresies, Chapters 29–43: The Gnostic Schools

    Filastrius of Brescia · d. c. 397 AD · Latin · First English translation
    The first English translation of any part of Filastrius’s catalog of heresies. Fifteen chapters covering every major Gnostic school: the Simonians, Basilideans, Valentinians, Marcosians, Carpocratians, and the Barbelo-Gnostics.

In the Queue

  • Refutation of All Heresies, Book 6, Chapters 24–37

    Hippolytus of Rome · c. 170–235 AD · Greek
    Hippolytus describes Valentinian Gnostic theology in detail: the divine Pleroma, the emanation of aeons, the fall of Sophia, and the divine spark trapped within humanity.
  • Against Heresies, Book 1

    Irenaeus of Lyon · c. 130–202 AD · Latin
    The earliest systematic description of Gnostic theology. Irenaeus catalogs Valentinian, Marcosian, and other Gnostic systems in extraordinary detail.
  • Against the Valentinians

    Tertullian · c. 155–220 AD · Latin
    Tertullian’s sharp, satirical attack on Valentinian Gnosticism — mocking the cosmology while preserving detailed descriptions of their beliefs.
  • Against Arius, Book 1

    Marius Victorinus · c. 290–364 AD · Latin
    A Neoplatonist philosopher turned Christian explores how the divine nature relates to human nature through concepts drawn from both Platonic metaphysics and Christian doctrine.
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