Titus 1:15
To the clean all things are clean; but to the defiled and unbelieving nothing is clean; but both their understanding and conscience are defiled.
Romans 14:20
For meat destroy not the work of God. All things indeed are pure: but it is evil to that man who eateth with offence.
Romans 14:23
But he that doubteth is condemned if he eat, because it is not of faith; for whatsoever is not of faith, is sin.
Romans 14:14
I know and am assured by the Lord Jesus, that nothing is unclean of itself: but to him that accounteth any thing to be unclean, it is unclean.
Matthew 15:18
But those things which proceed out of the mouth, come out of the heart, and they defile the man.
Acts 10:15
And the voice came to him again, the second time, What God hath purified, call not thou common.
Luke 11:39-41
Now ye Pharisees make clean the outside of the cup and the dish; but your inward part is full of rapine and wickedness.
1 Corinthians 6:12-13
All things are lawful for me; but all things are not expedient: all things are lawful for me; but I will not be brought under the power of any.
1 Corinthians 8:7
But there is not in all men this knowledge; for some do even until now, with consciousness of the idol, eat it as sacrificed to the idol, and their conscience, being weak, is defiled.
1 Corinthians 10:23
All things are lawful for me; but all things are not expedient; all things are lawful for me; but all things edify not.
1 Corinthians 10:25
Whatever is sold in the shambles eat, asking no questions for conscience sake.
1 Corinthians 10:31
Therefore whether ye eat or drink, or whatsoever ye do, do all to the glory of God.
1 Corinthians 11:27-29
So that whosoever shall eat the bread and drink the cup of the Lord unworthily, shall be guilty of the body and blood of the Lord.
1 Timothy 4:3-4
Forbidding to marry, and commanding to abstain from meats, which God hath created to be received with thanksgiving by them that believe and know the truth.
1 Timothy 6:5
evil surmisings, Perverse disputings of men of corrupt minds and destitute of the truth, supposing the gain is godliness. From such withdraw thyself.
Hebrews 9:14
How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge our conscience from dead works, to serve the living God?
Hebrews 10:22
Let us draw near with a true heart, in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water.