Romans 14:23

But, he that is in doubt, if he eat, hath condemned himself, - because, it was not of faith, and, everything which is not of faith, is sin.

Romans 13:2

So that, he who rangeth himself against the authority, against the arrangement of God opposeth himself, and, they who oppose, shall unto themselves a sentence of judgment receive.

1 Corinthians 8:7

Howbeit, not in all, is the knowledge; but, some, by their familiarity, until even now, with the idol, as an idol-sacrifice, eat it, and, their conscience, being, weak, is defiled.

1 Corinthians 11:29-31

For, he that is eating and drinking, - judgment unto himself, doth eat and drink, - if he be not setting apart the body.

Romans 14:5

For, one, indeed esteemeth one day beyond another, whereas, another, esteemeth every day: - let, each one, in his own mind be fully persuaded.

Titus 1:15

All things, are pure, unto the pure, but, unto the polluted and faithless, nothing, is pure, but polluted are both their mind and conscience;

Hebrews 11:6

But, apart from faith, it is impossible to be well-pleasing; for he that approacheth unto God - must needs have faith, that he is, and that, to them who seek him out, a rewarder he becometh.

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
Howbeit, not in all, is the knowledge; but, some, by their familiarity, until even now, with the idol, as an idol-sacrifice, eat it, and, their conscience, being, weak, is defiled.

Damned

Romans 13:2
So that, he who rangeth himself against the authority, against the arrangement of God opposeth himself, and, they who oppose, shall unto themselves a sentence of judgment receive.
1 Corinthians 11:29
For, he that is eating and drinking, - judgment unto himself, doth eat and drink, - if he be not setting apart the body.

Whatsoever

Titus 1:15
All things, are pure, unto the pure, but, unto the polluted and faithless, nothing, is pure, but polluted are both their mind and conscience;
Hebrews 11:6
But, apart from faith, it is impossible to be well-pleasing; for he that approacheth unto God - must needs have faith, that he is, and that, to them who seek him out, a rewarder he becometh.