1 Corinthians 8:9-10
8:9 But be careful that this liberty of yours does not become a hindrance to the weak.
8:10 For if someone weak sees you who possess knowledge dining in an idol’s temple, will not his conscience be “strengthened” to eat food offered to idols?
1 Corinthians 10:28-29
10:28 But if someone says to you, “This is from a sacrifice,” do not eat, because of the one who told you and because of conscience –
10:29 I do not mean yours but the other person’s. For why is my freedom being judged by another’s conscience?
Romans 14:14
14:14 I know and am convinced in the Lord Jesus that there is nothing unclean in itself; still, it is unclean to the one who considers it unclean.
Romans 14:23
14:23 But the man who doubts is condemned if he eats, because he does not do so from faith, and whatever is not from faith is sin.