Tertullian
AI Overview
Tertullian (c. 155 – c. 220 AD) is best known as the "Father of Latin Christianity" and the first major Christian theologian to write extensively in Latin. He shaped Western theological vocabulary by coining the concept of the Trinity (Trinitas) and defining God as "one substance in three persons". 
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Key Contributions & Concepts
- Father of Latin Theology: Pioneered the use of Latin instead of Greek for Christian writing, creating foundational ecclesiastical terms like substantia (substance) and persona (person). Theopedia +1
- The Trinity: First to articulate the formal doctrine that God is three co-equal persons sharing one single substance.
Facebook·David K. Bernard - Famous Quotes: Credited with the famous maxim, "The blood of the martyrs is the seed of the church".
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- Cultural Rigorism: Advocated for an uncompromising stance against secular Roman pagan culture, emphasizing strict moral and ascetic standards.
Encyclopedia Britannica
- Apologetics: Wrote fierce defenses of Christianity against Roman authorities and aggressive polemics attacking ancient heresies like Gnosticism.