John Calvin on Idolatry

“Seeing that this brutish stupidity has overspread the globe, men longing after visible forms of God, and so forming deities of wood and stone, silver and gold, or of any other dead and corruptible matter, we must hold it as a first principle, that as often as any form is assigned to God, his glory is corrupted by an impious lie.”

“We may also fitly remember that Satan has his miracles, which, though they are deceitful tricks rather than true powers, are such a sort as to mislead the simple-minded and untutored [Thes, 2:9-10] ... Idolatry has been nourished by wonderful miracles, yet these are not sufficient to sanction the superstition either of magicians or of idolators.”

“In one word, their theology was in substance this--There is one God who created all the world, and declared His will to us by Moses and the prophets, and finally by Jesus Christ and His apostles; and we have one sole Redeemer, who purchased us by His blood, and by whose grace we hope to be saved: All the idols of the world are curst, and deserve execration.”

“Just as a maistre Fifi mocks those who hold their noses [in his presence]. because he has handled filth for so long that he can no longer smell his own foulness; so likewise do idolaters make light of those who are offended by a stench they cannot themselves recognize. Hardened by habit, they sit in their own excrement, and yet believe they are surrounded by roses.”

“For just as soon as a visible form has been fashioned for God, his power is also bound to it. Men are so stupid that they fasten God wherever they fashion him; and hence they cannot but adore. And there is no difference whether they simply worship an idol, or God in the idol. It is always idolatry when divine honors are bestowed on an idol, under whatever pretext this is done. And because it does not please God to be worshiped superstitiously, whatever is conferred upon the idol is snatched from him.”