1 Corinthians 8:7
7In strict logic, then, nothing happened to the meat when it was offered up to an idol. It's just like any other meat. I know that, and you know that. But knowing isn't everything. If it becomes everything, some people end up as know-it-alls who treat others as know-nothings. Real knowledge isn't that insensitive.
We need to be sensitive to the fact that we're not all at the same level of understanding in this. Some of you have spent your entire lives eating "idol meat," and are sure that there's something bad in the meat that then becomes something bad inside of you. An imagination and conscience shaped under those conditions isn't going to change overnight.