Flee from Heresy: A Catholic Guide to Ancient and Modern Errors
- Learn what is and is not heresy
- History of over 130 heresies through the centuries
- How heresy destroys the Church, Why God allows it
- How it relates to schism, apostasy, and excommunication
- Historical and current insights from Bp. Athanasius Schneider
This is a description of the Catholic Church in the fourth century.
With similar patterns recurring in our time, one Catholic bishop is calling out to souls: “Know the errors and embrace the truth!”
In Flee from Heresy, Bishop Athanasius Schneider — raised among persecuted Catholics in the Soviet Union — offers a systematic treatment of more than 130 doctrinal errors, from ancient times down to our own day, along with English translations of the Church’s major anti-heresy documents of the past two centuries.
In this fascinating exposé, you will discover the ideological roots of our own unsteady times and be better equipped to “test all things; hold fast what is good” (1 Thess. 5:21). You will learn:
- What heresy is — and what it is not
- A sweeping history of heresies across the centuries
- How heresy destroys charity and the spiritual life
- Why God allows heresy to afflict His holy Church
- Names and categories of more than 130 doctrinal errors
- The nefarious heresy of the anti-Christ and the anti-Mary
- How heresy relates to schism, apostasy, and excommunication
- Why the Virgin Mary is invoked as “Destroyer of Heresies”

Description
- Learn what is and is not heresy
- History of over 130 heresies through the centuries
- How heresy destroys the Church, Why God allows it
- How it relates to schism, apostasy, and excommunication
- Historical and current insights from Bp. Athanasius Schneider
This is a description of the Catholic Church in the fourth century.
With similar patterns recurring in our time, one Catholic bishop is calling out to souls: “Know the errors and embrace the truth!”
In Flee from Heresy, Bishop Athanasius Schneider — raised among persecuted Catholics in the Soviet Union — offers a systematic treatment of more than 130 doctrinal errors, from ancient times down to our own day, along with English translations of the Church’s major anti-heresy documents of the past two centuries.
In this fascinating exposé, you will discover the ideological roots of our own unsteady times and be better equipped to “test all things; hold fast what is good” (1 Thess. 5:21). You will learn:
- What heresy is — and what it is not
- A sweeping history of heresies across the centuries
- How heresy destroys charity and the spiritual life
- Why God allows heresy to afflict His holy Church
- Names and categories of more than 130 doctrinal errors
- The nefarious heresy of the anti-Christ and the anti-Mary
- How heresy relates to schism, apostasy, and excommunication
- Why the Virgin Mary is invoked as “Destroyer of Heresies”
















