Romans 14:23

But, the one doubting, if he eats, he has been condemned, because it is not of faith; and all that is not of faith is sin.

Romans 13:2

So that the one resisting the authority resists the ordinance of God; and the ones who resist will receive judgment to themselves.

1 Corinthians 8:7

But this knowledge is not in all. But some being aware of the idol eat as an idolatrous sacrifice until now, and their conscience being weak is defiled.

1 Corinthians 11:29-31

For he who eats and drinks unworthily eats and drinks condemnation to himself, not discerning the Lord's body.

Romans 14:5

One indeed esteems a day above another day; and another esteems every day alike. Let each one be fully assured in his own mind.

Titus 1:15

To the pure all things are pure. But to those who are defiled and unbelieving nothing is pure, but even their mind and conscience is defiled.

Hebrews 11:6

But without faith it is impossible to please Him, for he who comes to God must believe that He is and that He is a rewarder of those who diligently seek 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 this knowledge is not in all. But some being aware of the idol eat as an idolatrous sacrifice until now, and their conscience being weak is defiled.

Damned

Romans 13:2
So that the one resisting the authority resists the ordinance of God; and the ones who resist will receive judgment to themselves.
1 Corinthians 11:29
For he who eats and drinks unworthily eats and drinks condemnation to himself, not discerning the Lord's body.

Whatsoever

Titus 1:15
To the pure all things are pure. But to those who are defiled and unbelieving nothing is pure, but even their mind and conscience is defiled.
Hebrews 11:6
But without faith it is impossible to please Him, for he who comes to God must believe that He is and that He is a rewarder of those who diligently seek Him.