summarized with Tertullian’s Latin description of tres personae, una substantia—“three persons, one substance”—or, in the evolving Greek terminology, three hypostaseis and one ousia. The Councils of Nicaea (AD 325) and Constantinople (AD 381) intended to define catholic belief about the nature of Christ and God while also protecting the mystery of God. In guarding divine mystery, the Niceno-Constantinopolitan Creed provides for a certain latitude regarding how the Godhead is to be understood. The
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