I know, and am persuaded by the Lord Jesus, that there is nothing unclean of itself: but to him that esteems any thing to be unclean, to him it is unclean.
And he said to them, You know how that it is an unlawful thing for a man that is a Jew to keep company, or come to one of another nation; but God has showed me that I should not call any man common or unclean.
For if any man see you which have 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;
However, there is not in every man that knowledge: for some with conscience of the idol to this hour eat it as a thing offered to an idol; and their conscience being weak is defiled.