
 The Jimmy Akin Podcast
 The Jimmy Akin Podcast #056 What Is Heresy? - Jimmy Akin
 Oct 21, 2025 
 Delve into the intricate world of heresy and its true meaning in Catholic theology. Uncover how Aquinas defined heresy as a corruption of dogmas and explore the historical shifts in the concept of dogma itself. Learn about the serious nature of heresy accusations and why many misunderstand the term today. Distinguish between formal and material heresy, and discover the importance of accurately defining dogma and Church teachings. Finally, find out why heresy might be rarer than commonly believed. 
 AI Snips 
 Chapters 
 Books 
 Transcript 
 Episode notes 
Contribution To Faith In Crisis
- Jimmy Akin recounts contributing chapters to a book titled Faith in Crisis alongside other authors including Cardinal Robert Serra.
- He frames his chapter "What Is Heresy?" as a corrective to confusion among traditionalists and others.
Heresy Charges Are Frequently Misused
- Accusations of heresy are rampant but often poorly supported because many don't understand the term.
- Jimmy Akin stresses heresy is a grave charge that must not be made lightly or falsely.
Historical Meaning Shift Of Heresy
- Historically heresy shifted from meaning 'sect' to meaning corrupting Christian dogma.
- Aquinas defined heresy as a species of unbelief by those who profess Christianity who corrupt its dogmas.



