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Primary source

Against Praxeas

Early third-century treatise that uses the Latin trinitas and describes one God in three persons.

Author: Tertullian
Tradition: Early Christian writings
Accessed: 2026-10-12

Citation

Tertullian, Against Praxeas 2, translated by Peter Holmes, Ante-Nicene Fathers, vol. 3.

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Where this source is used

The Trinity was invented at NicaeaNicaea met to answer Arius about the Son. The threefold name, the worship of Jesus, and the word Trinity were all in Christian use long before 325.