God ad intra and God ad extra

This article compares the relationship between the immanent and economic Trinity in John Zizioulas and Dumitru Stăniloae. Although they did not explicitly engage one another’s work, their approaches share a patristic inheritance while revealing distinctive emphases. After outlining the Orthodox distinction between God ad intra and God ad extra, the article examines divine transcendence, freedom, and communion. Zizioulas stresses the irreducibility of God’s eternal life to salvation history, safeguarding divine freedom against historical necessity. Stăniloae maintains this distinction while exploring how eternal Trinitarian communion is manifested in history, particularly through the relationship between the Son and the Spirit. Their difference concerns theological priorities rather than an opposition between separation and identity. Both affirm that the God revealed in history is the eternal Triune God, whose mystery revelation discloses without exhausting.