Treasury of Scripture Knowledge
1 Corinthians 8:7
However, that knowledge isn't in all men. But some, with consciousness of the idol until now, eat as of a thing sacrificed to an idol, and their conscience, being weak, is defiled.
Therefore he who resists the authority, withstands the ordinance of God; and those who withstand will receive to themselves judgment.
1 Corinthians 11:29
For he who eats and drinks in an unworthy way eats and drinks judgment to himself, if he doesn't discern the Lord's body.
To the pure, all things are pure; but to those who are defiled and unbelieving, nothing is pure; but both their mind and their conscience are defiled.
Without faith it is impossible to be well pleasing to him, for he who comes to God must believe that he exists, and that he is a rewarder of those who seek him.