: He explores the tension between the Church and modern revolutionary ideals (liberty, equality, fraternity), characterizing the post-conciliar Church's adoption of these principles as a betrayal of its true mission.

: The book originated as a series of lectures for seminarians at Écône, designed to expose the "most serious error of modern times"—liberalism—which Lefebvre argued leads directly to apostasy (abandoning the faith).

: Digital formats such as PDF and ZIP are available on religious and philosophical archives like Klex.ru and Azbyka.ru .

: Beyond internal Church matters, Lefebvre discusses the vulnerability of modern "global" civilization, drawing parallels between the decline of religious tradition and the erosion of social order. Where to Find the Book

Они предали Его. От либерализма к отступничеству