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.
Romans 14:20
Do not undo the work of God for food. Truly, all things indeed are clean, but it is bad to the man eating because of a stumbling-block.
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 14:14
I know and am persuaded in the Lord Jesus, that nothing by itself is common; except to him who esteems anything to be common, it is common.
Matthew 15:18
But the things which come out of the mouth come from the heart, and they defile the man.
Acts 10:15
And the voice spoke to him again the second time, What God has made clean, you do not call common.
Proverbs 21:4
A high look, a proud heart, and the plowing of the wicked, is sin.
Haggai 2:13
Then Haggai said, If one unclean of body touches these, is it unclean? And the priests answered and said, It is unclean.
Zechariah 7:5-6
Speak to all the people of the land, and to the priests, saying, When you fasted and mourned in the fifth and seventh months, even those seventy years, did you truly fast to Me, even to Me?
Luke 11:39-41
And the Lord said to him, Now you Pharisees make the outside of the cup and the platter clean, but your inward part is full of plunder and wickedness.
1 Corinthians 6:12-13
All things are lawful to me, but not all things profit. All things are lawful for me, but I will not be brought under the power of any.
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 10:23
All things are lawful to me, but not all things profit. All things are lawful to me, but not all things build up.
1 Corinthians 10:25
Eat whatever is sold in the meat market, asking no question for conscience' sake;
1 Corinthians 10:31
Therefore whether you eat or drink, or whatever you do, do all to the glory of God.
1 Corinthians 11:27-29
So that whoever shall eat this bread and drink this cup of the Lord unworthily, he will be guilty of the body and blood of the Lord.
1 Timothy 4:3-4
forbidding to marry, saying to abstain from foods which God has created to be received with thanksgiving by those who believe and know the truth.
1 Timothy 6:5
meddling, of men whose minds have been corrupted and deprived of the truth, supposing that gain is godliness. Withdraw from such.
Hebrews 9:14
how much more shall the blood of Christ (who through the eternal Spirit offered Himself without spot to God) purge your 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 having been washed with pure water.