Divinization (Christian)

In Christian theology, divinization ("divinization" may also refer to apotheosis, lit. "making divine"), or theopoesis or theosis, is the transforming effect of divine grace, the spirit of God, or the atonement of Christ. Although it literally means to become divine, or to become God, most modern Christian denominations do not interpret the doctrine as implying an overcoming of a fundamental ontological difference between God and humanity; for example, John of the Cross (AD 1542–1591) indicated that while "God communicates to it [the individual soul] His supernatural Being, in such wise that it appears to be God Himself, and has all that God Himself has", yet "it is true that its natural being, though thus transformed, is as distinct from the Being of God as it was before".

Patristic writings

The term theosis was originally used in Greco-Roman pagan society to venerate a ruler. It was inconceivable to Jewish piety. Yet it was adopted in Eastern Christianity by the Greek Fathers to describe the spiritual transformation of a Christian. The change of human nature was understood by them as a consequence of a baptized person being incorporated into the Church as the Body of Christ. Divinization was thus developed within the context of incarnational theology.

The teaching about deification of a Christian can be found as early as in the works of Irenaeus (c. 130–202), a Greek Father who is also known as the Father of Catholic theology, and who was bishop of the church of Lyon in France.