Romans 14:23
But the man who has misgivings about eating, if he then eats, has already condemned himself by so doing, because he did not follow his faith, and any action that does not follow one's faith is a sin.
Romans 13:2
so that anyone who resists the authorities sets himself against what God has established, and those who set themselves against Him will get the penalty due them.
1 Corinthians 8:7
But it is not in all of you that such knowledge is found. Some, because of their past habits with idols, even down to the present moment, still eat such food as was really sacrificed to an idol, and so their consciences, because they are overscrupulous, are contaminated.
1 Corinthians 11:29-31
For whoever eats and drinks without recognizing His body, eats and drinks a judgment on himself.
Romans 14:5
One man rates one day above another, another rates them all alike. Let every man be fully convinced in his own mind.
Titus 1:15
To the pure everything is pure, but to the impure and unbelieving nothing is pure, but their very minds and consciences are impure.
Hebrews 11:6
but without faith it is impossible to please Him, for anyone who approaches God must believe that there is a God and that He gives rewards to all who earnestly try to find Him.