Trinity
The Christian doctrine that God exists eternally as three distinct persons—Father, Son, and Holy Spirit—while remaining one in essence and substance. Developed in the early church (particularly Nicene Council, 325 CE), the Trinity reconciles monotheism with the biblical revelation of Father, Son, and Spirit. The doctrine is central to Christian theology.
Real World
The Nicene Creed, still recited in Catholic and Anglican services worldwide every Sunday, embeds the Trinitarian formula — 'one God in three persons' — directly into Christian worship, showing how the 325 CE council shaped living practice today.
Exam Focus
When 'explain' questions ask about the Trinity, always distinguish the three persons AND their unity of substance to access full marks.
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