Signs of Revelation - Part 4A: Practical Modern Objections
Practical Modern Objections
Seven objections in the Summa’s own manner: the adversary speaks first, by name, and the response follows. The surface challenges are answered here; their philosophical roots wait in Part 4B.
Having established the criteria for authentic divine revelation, we must now address the practical objections that modern skepticism raises against the possibility of supernatural intervention in human affairs. These objections, while often presented as purely scientific or historical, frequently rest on deeper philosophical assumptions that we will examine in the next installment. For now we focus on the immediate, practical challenges that contemporary minds bring to claims of divine revelation.
§ I
Scientific Materialism and Miraculous Claims
Objection 1
“Miracles Violate Natural Laws”
The Objection
Modern science has established fixed natural laws that govern physical reality. Miracles, by definition, would violate these laws, making them impossible. Any apparent miraculous event must have a natural explanation that we simply have not discovered yet.
Response
This objection fundamentally misunderstands both the nature of natural laws and the nature of miracles. Natural laws describe the regular patterns by which secondary causes operate under normal circumstances. They do not describe what the Primary Cause can or cannot do with His creation.
St. Thomas distinguishes between events that are impossible according to nature (impossibilia secundum naturam) and events that are beyond the power of nature (supra vires naturae). A miracle is not a violation of natural law but a direct intervention by the Author of natural law, working beyond the ordinary operation of secondary causes (ST I, Q.105, A.8). And modern investigation of miraculous phenomena supports exactly this understanding. Consider two well-documented cases:
Lanciano · 8th Century
In analyses conducted between 1970 and 1981, Dr. Odoardo Linoli examined flesh and blood preserved for over twelve centuries. The flesh proved to be striated cardiac muscle tissue, the blood of group AB with protein ratios resembling fresh blood, and no trace of preservatives was detected.
Buenos Aires · 1996
The forensic cardiologist Dr. Frederick Zugibe analyzed a tissue sample without being told its origin. He identified inflamed myocardial tissue of the left ventricle bearing the marks of severe stress, with intact white blood cells, cells that ordinarily degrade within minutes outside a living body. The sample came from a consecrated host.
These cases show science doing what science does best: confirming that events exceed known natural causation, which is precisely what authentic divine intervention would leave behind. The scientific method presupposes the regularity of natural law, and that regularity is exactly what makes the method capable of identifying when something truly transcends ordinary natural processes.
Objection 2
“Psychological Explanation Suffices”
The Objection
Apparent miraculous healings can be explained through psychosomatic effects, placebo responses or misdiagnosis. Religious experiences result from psychological states, neurological activity or social conditioning rather than supernatural intervention. Prominent advocates include the psychologist Susan Blackmore, who argues that religious experiences are purely neurological events, and Michael Shermer, who provides psychological explanations for religious phenomena in works like How We Believe.
Response
Psychological factors certainly influence human experience, but this objection fails against the documented cases it would need to explain:
Delizia Cirolli · Lourdes, 1976
A twelve-year-old girl with a biopsy-confirmed malignant bone tumor of the knee, with extensive destruction documented radiographically. In the weeks after her pilgrimage the tumor vanished and X-rays documented bone reconstruction. The Medical Bureau judged the cure inexplicable and the Church recognized it in 1989.
Vittorio Micheli · Lourdes, 1963
A soldier whose hip sarcoma had destroyed the joint, leaving him in a cast. His pain ceased suddenly after bathing at the grotto, and X-rays over the following months documented progressive reconstruction of the hip bone until he walked again. Recognized in 1976.
Organic versus functional disease. These cases involve organic pathologies, malignant tumors and destroyed bone, entirely beyond psychological influence. Suggestion does not rebuild a hip. Sarcoma-eaten bone does not reconstruct itself on any timeline, which is why the reconstruction, not the speed alone, is the point.
Sudden versus gradual healing. Natural healing, even psychologically enhanced, follows temporal patterns and known mechanisms. The Lourdes criteria from Part 3 require the cure to be sudden, complete, lasting and without adequate medical explanation, and the recognized cases pass under exactly that scrutiny.
Physical evidence. When Eucharistic miracles produce identifiable human tissue with verifiable cellular structures, no psychological explanation can account for the physical reality on the laboratory bench. Minds do not turn bread into myocardium.
Objective verification. The most compelling phenomena involve objective, measurable changes documented by multiple independent observers using scientific instruments. That is the opposite of a private psychological state.
Objection 3
“Insufficient Scientific Controls”
The Objection
Alleged miracles lack proper scientific controls, double-blind studies or reproducible conditions. Without laboratory-controlled verification, such claims remain scientifically worthless. This position is exemplified by Carl Sagan’s maxim, echoed by Richard Dawkins, that “extraordinary claims require extraordinary evidence,” a formulation that became a cornerstone of contemporary scientific skepticism.
Response
This objection misapplies laboratory methodology to an inappropriate context. The demand for reproducible, controlled conditions assumes that divine action operates like a natural phenomenon, subject to human manipulation and experimental control. The correct scientific approach to unrepeatable events is the one historians, geologists and forensic scientists already use:
Rigorous Documentation
Initial conditions and final results on the record
Multiple Expert Witnesses
Drawn from the relevant scientific disciplines
Laboratory Analysis
Of physical evidence wherever it exists
Medical Verification
Using appropriate diagnostic tools, before and after
Historical Investigation
Confirming the authenticity of reported events
And the Church already runs such investigations at a standard skeptics rarely acknowledge:
Lourdes Medical Bureau · est. 1883
Medical boards of specialists examine claimed cures against criteria requiring grave organic disease, sudden and complete cure, permanence and the absence of medical explanation. Of more than seven thousand reported cures, seventy have been recognized. That ratio is rigor, not weakness.
Consulta Medica · Vatican
For canonization causes, a medical commission of specialists from major universities examines alleged cures by contemporary medical standards, often across years of investigation and multiple expert confirmations before approval.
As for reproducibility: many scientific conclusions rest on unrepeatable historical events, from geological formations to supernova observations to evolutionary developments. The evidential standards appropriate to historical science are the standards appropriate here, and by those standards the best cases hold.
§ II
Historical Skepticism and Documentary Criticism
Objection 4
“Ancient Sources Are Unreliable”
The Objection
Ancient peoples lacked scientific understanding and were prone to superstition. Their reports of miraculous events reflect primitive thinking rather than accurate observation. We cannot trust documents written by believers who had obvious bias toward supernatural explanations. This perspective is prominently represented by the Jesus Seminar (particularly John Dominic Crossan and Robert Funk) and by the New Testament scholar Bart Ehrman, who treats the supernatural accounts as later accretions or as beyond historical demonstration.
Response
This objection commits the fallacy of chronological snobbery while applying inconsistent standards to historical evidence.
Observational competence. Ancient peoples were fully capable of distinguishing ordinary from extraordinary events. A first-century observer could tell the difference between natural recovery and instantaneous cure as readily as a modern one; recognizing an unprecedented phenomenon does not require understanding its mechanism. Fishermen know that men do not walk on water. That is why they were terrified.
Bias cuts both ways. If ancient believers had a bias toward supernatural explanations, modern materialists have an equally strong bias against them. The presence of belief does not automatically invalidate testimony; indeed, perfect neutrality would be the strange response to witnessing events of ultimate significance.
Documentary standards. The evidence for many miraculous claims meets or exceeds the standards applied to other ancient historical claims, and in two famous cases the artifacts themselves are still on the table:
The Shroud of Turin
Despite intense scientific scrutiny and initial skepticism, recent studies (including the 2013 University of Padua dating analysis) suggest a first-century origin, with image formation processes that remain scientifically unexplained despite decades of investigation.
The Guadalupe Tilma · 1531
Philip Callahan’s 1979 infrared study found the original figure laid down without apparent underdrawing or brushwork, with later additions by human hands. The ayate fibers have outlasted their expected lifespan many times over, and aspects of the image’s formation remain unexplained after study at major research institutions.
Archaeological confirmation. Modern archaeology has repeatedly confirmed the historical reliability of ancient documents previously dismissed as legendary, which counsels caution about rejecting supernatural accounts merely because they are old.
Objection 5
“Alternative Natural Explanations Are Always Possible”
The Objection
For any claimed miracle, alternative natural explanations remain theoretically possible. Since natural explanations are inherently more probable than supernatural ones, we should always prefer the natural explanation, no matter how improbable. This position finds its classic formulation in Section X of David Hume’s Enquiry, the essay Of Miracles, and continues in contemporary skeptics like Jerry Coyne, who argues that naturalistic explanations must be preferred regardless of their implausibility.
Response
This objection confuses methodological naturalism, a useful scientific procedure, with philosophical naturalism, a metaphysical assumption that has never been demonstrated.
Burden of proof. When multiple lines of evidence converge on supernatural causation and no adequate natural explanation accounts for the observed phenomena, the burden shifts to those proposing alternatives. Merely asserting that a natural explanation must exist is an act of faith, not of science.
Probability assessment. The objection assumes supernatural events are inherently less probable than natural ones, but that assumption itself requires justification. If God exists, as the Natural Apologetics sequence established, then divine intervention becomes not only possible but, under appropriate circumstances, expected. Hume’s scale was weighted before anything was placed on it.
Scientific honesty. Authentic inquiry follows evidence wherever it leads. When evidence consistently points beyond natural causation, honesty requires acknowledging it rather than insisting on naturalistic explanations regardless of their inadequacy.
§ III
Cultural and Sociological Objections
Objection 6
“Other Religions Claim Miracles Too”
The Objection
Many religions claim miraculous events and divine revelations. If we accept Catholic miracles, consistency requires accepting all religious claims, leading to contradictory conclusions about divine truth.
Response
This objection assumes that all claimed miracles are equal in evidential value and doctrinal content, which careful investigation shows to be false.
Qualitative differences in evidence. The medical documentation, scientific investigation and verification processes at Lourdes far exceed those of most claimed miraculous sites anywhere in the world, and the laboratory analyses of the Eucharistic miracles at Lanciano, Buenos Aires and Tixtla provide objective physical evidence of a kind that subjective testimony and unverifiable spiritual experience simply cannot match. The claims are not symmetrical, so the conclusion need not be either.
Doctrinal coherence. Even if multiple traditions contain some authentic preternatural phenomena, it does not follow that their doctrinal claims possess equal truth value. As Part 2 demonstrated through Garrigou-Lagrange, spiritual forces opposed to God can produce impressive phenomena while promoting false doctrine, which is exactly why the sign test never stands alone.
Criteria for discernment. The criteria of Part 3 exist precisely to evaluate competing claims. Authentic divine revelation must demonstrate not only preternatural power but conformity to the natural moral law, internal consistency and fruits of authentic holiness, and the full set is a filter most claims never pass.
Objection 7
“Religious Experiences Are Culturally Conditioned”
The Objection
Religious experiences reflect cultural expectations and social conditioning rather than objective supernatural realities. People see what they expect to see based on their religious background. This view is exemplified by the anthropologist Pascal Boyer’s cognitive science of religion and by Matthew Alper’s arguments in The God Part of the Brain, both suggesting religious experiences result from evolutionary brain mechanisms rather than supernatural realities.
Response
Cultural factors certainly influence how religious experiences are interpreted and expressed. They do not account for the cases that matter most, because those cases contain what conditioning cannot supply.
Unexpected elements. Authentic revelations often contradict the expectations of everyone involved:
Fatima · October 1917
The predicted solar phenomenon was witnessed by a crowd commonly estimated at seventy thousand, believers and skeptics alike. Avelino de Almeida of the anticlerical daily O Século came to mock and instead filed detailed accounts of solar behavior he could not explain, against his own expectations and his paper’s editorial line.
Guadalupe · 1531
The image combines Castilian Marian iconography with Nahua symbolic elements readable to Aztec eyes, in a synthesis neither culture would naturally have produced and neither expected. It converted a civilization that Spanish preaching had barely dented.
Cross-cultural consistency. Meanwhile the authentic phenomena themselves show remarkable consistency across cultures and centuries, suggesting objective realities rather than local projection. Conditioning varies; the signature does not.
Objective physical evidence. When religious experience leaves behind human cardiac tissue, reconstructed bone and images without brushwork, cultural conditioning has nothing to say. Culture shapes interpretation; it does not transform matter.
Universal moral content. The moral teaching attached to authentic revelation characteristically transcends and corrects the recipient culture rather than flattering it, which is the opposite of what projection would predict.
§ IV
The Limitation of Practical Objections
These practical objections deserve the serious answers they have received, but notice what they all have in common: each rests on deeper philosophical assumptions about the nature of reality, causation and knowledge. The materialist assumption that only physical causes produce physical effects, the historical assumption that ancient testimony lacks value and the epistemological assumption that natural explanations are always preferable are not findings. They are premises, and premises require justification.
Moreover, many of these objections prove too much. Applied consistently, they would undermine not only belief in divine revelation but confidence in historical knowledge, scientific inference and rational discourse generally. A skepticism that dissolves its own foundations is not rigor; it is acid.
§ V
The Convergence of Evidence
When we examine the totality of evidence for authentic divine revelation, particularly in cases where multiple criteria converge, the practical objections lose their force. Scientific analysis confirms the supernatural character of the phenomena, historical investigation verifies accurate transmission, theological evaluation demonstrates doctrinal coherence and spiritual discernment recognizes authentic fruits of holiness. The cumulative case withstands practical scrutiny when evaluated by appropriate standards of evidence.
But the deeper assumptions driving the skepticism remain standing, and they deserve their own trial. In the final installment we examine the philosophical foundations of modern doubt: the metaphysical materialism, epistemological skepticism and anti-substance philosophies from which the practical objections grow. Only by addressing the roots can the response be complete.
Seven objections have taken the stand, and each has answered to the same evidence: tissue on the bench, bone on the film, a crowd of seventy thousand squinting at the sky. The surface case is closed. The philosophical foundations come next, and they will not survive the cross-examination either.
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Five criteria in two tiers, with the external pair above the counterfeit’s ceiling.
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Every article in the sequence, from the Five Ways to the signs of revelation.
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Part 4B: Philosophical Foundations of Modern Skepticism
The metaphysical roots of the practical objections, examined and answered.
Signs of Revelation · Part 4A of 5
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