Chapter 26 2 min read
Testimony, Unknown Causes, Fraud, and the Humean Challenge
From the minimally refined research manuscript
The classical skeptical challenge is not exhausted by asking whether miracles are metaphysically possible. It asks whether testimony can ever rationally establish such an event, especially when ordinary error, exaggeration, fraud, and unknown natural causes are available alternatives.
The tradition itself contains resources against credulity, and this restraint is essential to the intellectual defensibility of miracle claims.
Against Donatists appealing to spectacular claims, Augustine tells Christians not to be seduced simply by miracle-workers. Matthew 7 and the warnings of Christ prevent that inference. He can even contrast miraculous gifts with ecclesial charity and unity.
So Catholic tradition itself contains an anti-credulity principle:
miracle claims must be subordinated to truth, charity, revelation, and ecclesial discernment.
That is why, historically, “it happened in our camp” cannot be the ultimate criterion.
Otherwise Catholicism would immediately lose its ability to answer the Donatist, Montanist, Gnostic, pagan, Muslim, Protestant, Orthodox, Pentecostal, Hindu, Buddhist, or New Religious Movement claimant who makes exactly the same argument.
David Hume’s famous treatment in Enquiry concerning Human Understanding, section X, presses the evidential asymmetry between uniform experience and testimony to its violation. Catholic theology need not accept Hume’s definition of miracle as a violation of laws of nature in order to feel the force of his demand for proportionate evidence. Lambertini’s practice can be read as an older but strikingly compatible insistence that stronger claims require stronger testimonial and causal scrutiny.
The proper Catholic response is therefore not that a religious witness deserves automatic privilege. It is that testimony, diagnosis, documentary quality, independence of witnesses, temporal sequence, causal alternatives, durability, and public circumstances must all be assessed. The tradition’s confidence in divine action is compatible with a presumption against careless attribution.
Unknown natural causes remain a real epistemic possibility. Lambertini explicitly denies that one must know every law of nature before making a miracle judgment, but this does not license certainty from ignorance. The conclusion must be proportioned to the stability of the relevant natural knowledge and to the quality of the case.
Philosophical extension beyond the handbook’s primary-source core: David Hume, Enquiry concerning Human Understanding, sec. X. Catholic evidentiary framework: Lambertini, De Servorum Dei IV.1, chs. IV, VIII and applied medical chapters.
A closer look
Questions raised here.
How can finite human beings rationally determine that an alleged miracle actually occurred?
They do so through historical and forensic inquiry rather than immediate metaphysical intuition. The first task is to establish the event itself through witnesses, records, chronology, physical evidence, and other relevant documentation. Only then can investigators ask what caused it, whether created explanations suffice, and whether divine attribution is warranted. Lambertini’s major contribution is precisely this refusal to move directly from reported marvel to theological conclusion. The judgment is therefore evidential and disciplined, even when it remains defeasible.
How should fraud, misdiagnosis, psychological effects, unknown natural causes, and preternatural agency be excluded or weighed?
They are competing possibilities that must be investigated rather than dismissed by religious enthusiasm. Misdiagnosis can make an ordinary recovery appear extraordinary; psychological and psychosomatic processes can alter symptoms; fraud and perceptual error can create false events; unknown natural causes remain genuine possibilities; and traditional Catholic ontology adds superior created spiritual agencies to the hypothesis space. None of these alternatives wins merely by being possible, but neither may they be ignored. A serious miracle judgment emerges only after the relevant alternatives have been proportionately assessed.