Romans 14:23

but the man who has misgivings about eating, and then eats, is thereby condemned, for he is not following his convictions, and anything that does not rest on conviction is wrong.

Romans 13:2

so that anyone who resists the authorities sets himself in opposition to what God has ordained, and those who oppose him will bring down judgment upon themselves.

1 Corinthians 8:7

But it is not everyone that has this knowledge; for some, through being long accustomed to idols, still eat meat that has been sacrificed to them as really offered to an idol, and their consciences, being oversensitive, are troubled.

1 Corinthians 11:29-31

For anyone who eats and drinks, eats and drinks a judgment upon himself if he does not recognize the body.

Romans 14:5

One man thinks one day better than another, while another thinks them all alike. Everybody must be fully convinced in his own mind.

Titus 1:15

To the pure everything is pure, but to the evil-minded and unbelieving nothing is pure, but their very minds and consciences are unclean.

Hebrews 11:6

but without faith it is impossible to please him; for whoever would approach God must have faith in his existence and in his willingness to reward those who try to find him.

Treasury of Scripture Knowledge

Summary

And he that doubteth is damned if he eat, because he eateth not of faith: for whatsoever is not of faith is sin.

Bible References

He that

1 Corinthians 8:7
But it is not everyone that has this knowledge; for some, through being long accustomed to idols, still eat meat that has been sacrificed to them as really offered to an idol, and their consciences, being oversensitive, are troubled.

Damned

Romans 13:2
so that anyone who resists the authorities sets himself in opposition to what God has ordained, and those who oppose him will bring down judgment upon themselves.
1 Corinthians 11:29
For anyone who eats and drinks, eats and drinks a judgment upon himself if he does not recognize the body.

Whatsoever

Titus 1:15
To the pure everything is pure, but to the evil-minded and unbelieving nothing is pure, but their very minds and consciences are unclean.
Hebrews 11:6
but without faith it is impossible to please him; for whoever would approach God must have faith in his existence and in his willingness to reward those who try to find him.