Heresy & apologetics
Defending the faith and naming its rivals: apologies to emperors, refutations of Marcion, Celsus, and the Gnostics.
Key terms: αἵρεσις (hairesis), apologia, haeresis, refutatio, ἀπολογία (apologia) — the Day 14 terms index will link each term to its occurrences across the corpus.
- Pistis Sophia
- Apelles — testimonia
- A Plea for the Christians
- On the Resurrection of the Dead
- Basilides — fragments and testimonia
- Celsus, True Doctrine — fragments via Origen
- Preparation for the Gospel (Praeparatio Evangelica)
- Proof of the Gospel (Demonstratio Evangelica)
- Dialogue with Trypho
- First Apology
- Second Apology
- Marcion — testimonia and quotations (not a reconstruction)
- Epistle to Diognetus
- Octavius
- Contra Celsum
- Porphyry, Against the Christians — fragments via Eusebius
- Fragment of the Apology (preserved by Eusebius, Church History 4.3)
- Address to the Greeks
- Fragments
- Ad Nationes
- Adversus Marcionem
- De Praescriptione Haereticorum
- The Apology
- To Autolycus
- Valentinus — fragments
Anonymous (Coptic Gnostic)
Apelles
Athenagoras
Basilides
Celsus
Eusebius of Caesarea
Justin Martyr
Marcion of Sinope
Mathetes
Minucius Felix
Origen
Porphyry
Quadratus
Tatian
Tertullian
Theophilus of Antioch
Valentinus