Fr. Gregory Pine explains that, according to Aquinas, Christians are called to true divinization or theosis: by grace and the sacraments they really come to share in God’s own life without becoming God by nature, growing into intimate communion with the Triune God through Christ in whom this transformation is perfectly realized.

This lecture was given on October 3rd, 2025, at Duke University.

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About the Speakers:

Fr. Gregory Pine, O.P., is an instructor of dogmatic and moral theology at the Dominican House of Studies and the Assistant Director of the Thomistic Institute. He holds a doctorate from the University of Fribourg (Switzerland). He is the author of Prudence: Choose Confidently, Live Boldly and Your Eucharistic Identity: A Sacramental Guide to the Fullness of Life, and is co-author of Credo: An RCIA Program and Marian Consecration with Aquinas.

His writing also appears in Aleteia, Magnificat, and Ascension’s Catholic Classics series. In addition to the TI podcast, he regularly contributes to the podcasts Godsplaining and Pints with Aquinas, and Catholic Classics.

Keywords: Divinization and Theosis, Grace and Participation in God, Holy Spirit and Sanctification, Incarnation and Salvation, Life of Virtue and Holiness, Participation in the Divine Nature, Sacraments and Spiritual Transformation, Trinity and Divine Life, Union with God in Christ, Western and Eastern Christian Spirituality

Participation in the Divine Nature: Aquinas and the Catholic Vision of Theosis – Fr. Gregory Pine, O.P.

The Thomistic Institute