“It has often been said, that anything may be proved from the Bible, but before anything can be admitted as proved by the Bible, the Bible itself must be proved to be true; for if the Bible be not true, or the truth of it be doubtful, it ceases to have authority, and cannot be admitted as proof of anything.”
1790s, The Age of Reason, Part II (1795)
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Thomas Paine 262
English and American political activist 1737–1809Related quotes

“I can prove anything by statistics except the truth.”
As quoted in A Dictionary of Thoughts (1908) edited by Tryon Edwards, p. 587.

Neil deGrasse Tyson on Climate Change Deniers from ALL IN with Chris Hayes, MSNBC and also in Bill Maher Show. https://www.youtube.com/watch?v=KJhbQIlu4mk https://www.youtube.com/watch?v=Klgp_qDiRhQ
2010s
Variant: It has been said that every great emerging scientific truth goes to three phases: First people say: «It can't be true». Second they say: «It conflicts with the bible.» Third they say: «It's true all along.»

“A loving trust in the Author of the Bible is the best preparation for a wise study of the Bible.”
Source: Dictionary of Burning Words of Brilliant Writers (1895), p. 38.

“When I think of all the harm [the Bible] has done, I despair of ever writing anything to equal it.”

Source: Utilitarianism (1861), Ch. 1
Context: I shall, without further discussion of the other theories, attempt to contribute something towards the understanding and appreciation of the Utilitarian or Happiness theory, and towards such proof as it is susceptible of. It is evident that this cannot be proof in the ordinary and popular meaning of the term. Questions of ultimate ends are not amenable to direct proof. Whatever can be proved to be good, must be so by being shown to be a means to something admitted to be good without proof.

“Just knows, and knows no more, her Bible true,—
A truth the brilliant Frenchman never knew.”
Truth, line 327.
Bartlett's Familiar Quotations, 10th ed. (1919)

“You can hire logic, in the shape of a lawyer, to prove anything that you want to prove.”
The Autocrat of the Breakfast Table (1858)