Men’s folly cannot restrain itself from falling headlong into superstitious rites. But even if so much danger were not threatening, when I ponder the intended use of churches, somehow or other it seems to me unworthy of their holiness for them to take on images other than those living and symbolical ones which the Lord has consecrated by his Word. I mean Baptism and the Lord’s Supper, together with other rites by which our eyes must be too intensely gripped and too sharply affected to seek other images forged by human ingenuity.
 John Calvin, Institutes of the Christian Religion & 2 (ed. John T. McNeill; trans. Ford Lewis Battles; vol. 1; The Library of Christian Classics; Louisville, KY: Westminster John Knox Press, 2011), 113–114.