'Idols' in the Bible

Now as touching things offered unto idols, we know that we all have knowledge. Knowledge puffeth up, but charity edifieth.

As concerning therefore the eating of those things that are offered in sacrifice unto idols, we know that an idol is nothing in the world, and that there is none other God but one.

For if any man see thee which hast knowledge sit at meat in the idol's temple, shall not the conscience of him which is weak be emboldened to eat those things which are offered to idols;

What say I then? that the idol is any thing, or that which is offered in sacrifice to idols is any thing?

But if any man say unto you, This is offered in sacrifice unto idols, eat not for his sake that shewed it, and for conscience sake: for the earth is the Lord's, and the fulness thereof:

Ye know that ye were Gentiles, carried away unto these dumb idols, even as ye were led.