12. The manifestation of God is choked by human superstition and the error of the philosophers
Hence arises that boundless filthy mire of error wherewith the whole earth was filled and covered. For each man’s mind is like a labyrinth, so that it is no wonder that individual nations were drawn aside into various falsehoods; and not only this—but individual men, almost, had their own gods. For as rashness and superficiality are joined to ignorance and darkness, scarcely a single person has ever been found who did not fashion for himself an idol or specter in place of God. Surely, just as waters boil up from a vast, full spring, so does an immense crowd of gods flow forth from the human mind, while each one, in wandering about with too much license, wrongly invents this or that about God himself.
Institutes of the Christian Religion, Volumes 1 & 2, ed. John T. McNeill, trans. Ford Lewis Battles, The Library of Christian Classics (Louisville, KY: Westminster John Knox Press, 2011) Vol. 1.5.12. p. 64-65.