1 Corinthians 8:4

"Concerning therefore the eating of things sacrificed to idols, we know that no idol is anything in the world, and that there is no God but one." Look what a strait he hath fallen into! For indeed his mind is to prove both; that one ought to abstain from this kind of banquet, and that it hath no power to hurt those who partake of it: things which were not greatly in agreement with each other. For when they were told that they had no harm in them, they would naturally run to them as indifferent things. But when forbidden to touch them, they would suspect, on the contrary, that their having power to do hurt occasioned the prohibition. Wherefore, you see, he puts down their opinion about idols, and then states as a first reason for their abstaining the scandals which they place in the way of their brethren; in these words: "Now concerning the eating of things sacrificed to idols, we know that no idol is anything in the world." Again he makes it common property and doth not allow this to be theirs alone, but extends the knowledge all over the world. For "not among you alone," says he, "but every where on earth this doctrine prevails." What then is it? "That no idol is anything in the world; that there is no God but one." What then? are there no idols? no statues? Indeed there are; but they have no power: neither are they gods, but stones and demons. For he is now setting himself against both parties; both the grosser sort among them, and those who were accounted lovers of wisdom. Thus, seeing that the former know of no more than the mere stones, the others assert that certain powers reside in them, which they also call gods; to the former accordingly he says, that "no idol is anything in the world," to the other, that "there is no God but one." Do you mark how he writes these things, not simply as laying down doctrine, but in opposition to those without? A thing indeed which we must at all times narrowly observe, whether he says anything abstractedly, or whether he is opposing any persons. For this contributes in no ordinary way to the accuracy of our doctrinal views, and to the exact understanding of his expressions.