Fr. Gregory Pine explains Nicene Trinitarian theology and Chalcedonian Christology through key councils and controversies, showing how Christ’s incarnation and union with humanity unveil the path to salvation and divine participation.This lecture was given on September 11th, 2025, at University of Dallas.For more information on upcoming events, visit us at thomisticinstitute.org/upcoming-events.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: Chalcedonian Christology, Council Of Chalcedon, Divine Participation, Ecumenical Councils, Exemplar Cause, Homoousios, Hypostatic Union, Incarnational Solidarity, Nicene Theology, Soteriology

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