'Food Sacrificed To Idols' in the Bible

Now concerning food sacrificed to idols: we know that we all possess knowledge. Knowledge puffs up, but love builds up.

Therefore concerning the eating of food sacrificed to idols, we know that an idol is nothing in the world, and that there is no God but one.

For if a man sees you, who have knowledge, at table in an idol's temple, will not his conscience, if he is weak, be encouraged to eat food sacrificed to idols?