Theosis refers to the transforming participation of believers in the divine nature through union with Christ. It is grounded in 2 Peter 1:4: "you may become partakers of the divine nature." This is NOT the believer becoming God in essence — the Creator/creature distinction remains eternally — but rather the progressive moral and spiritual conformity to Christ's likeness by the Spirit's work (2 Cor. 3:18; Rom. 8:29). Athanasius expressed the orthodox formula: "God became man so that man might become godly." Western theology describes this as glorification; Eastern Orthodoxy calls it theosis. Both affirm the same biblical truth: believers are being transformed into the image of Christ.
Not a standard Webster 1828 entry. Theosis (or deification) is the Eastern Christian theological term for the process by which believers are conformed to the image of God through the Holy Spirit — sharing in divine attributes of holiness, love, and immortality, while always remaining distinct from God in nature and being.
New Age spirituality has seized on the concept of "becoming divine" and stripped it of its Christian meaning, teaching that human beings ARE God, or that through spiritual evolution one achieves godhood. Word-Faith theology similarly distorts theosis into "little gods" theology — teaching that believers are divine beings equal to God in kind. These errors collapse the Creator/creature distinction that is foundational to all of Scripture. True theosis is moral and relational union with God through Christ — not ontological identity with God's essence.
2 Peter 1:4 — "You may become partakers of the divine nature, having escaped from the corruption that is in the world because of sinful desire."
2 Corinthians 3:18 — "We all... are being transformed into the same image from one degree of glory to another."
Romans 8:29 — "Those whom he foreknew he also predestined to be conformed to the image of his Son."
1 John 3:2 — "When he appears we shall be like him, because we shall see him as he is."
John 17:21–23 — Christ prays that believers would be one with the Father and Son — relational, not ontological union.
G2316 — Theos: God — the root of theosis
G2844 — Koinonos: partaker, sharer — 2 Peter 1:4's "partakers of the divine nature"
G3339 — Metamorphoo: to transform, transfigure — used in Rom. 12:2 and 2 Cor. 3:18 of spiritual transformation
• Theosis rightly understood is the goal of the Christian life: being conformed to Christ's image in holiness, love, and eternal life.
• The Creator/creature distinction is never dissolved in theosis — God remains God; we remain His creatures, but His children.
• Sanctification in Protestant theology and theosis in Orthodox theology describe the same Spirit-driven transformation toward conformity with Christ.