Titus 1:15
To the pure indeed all things are pure; but to the polluted and unbelieving nothing is pure; even their mind and conscience is polluted.
Romans 14:20
Do not for the sake of meat destroy thy brother who is the work of God: all things indeed are pure; but to the man that eateth with offence it is evil.
Romans 14:23
But he that hath any scruple, is condemned if he eat; because he doth it not with faith: and whatsoever is not of faith, is sin.
Romans 14:14
I know and have been taught by the Lord Jesus, that nothing is unclean of itself: only to him that thinketh any thing unclean, to him it is unclean.
Matthew 15:18
But the things, which proceed out of the mouth, come from the heart, and those defile a man.
Acts 10:15
And the voice said to him again the second time, What God hath cleansed, do not thou account polluted.
Luke 11:39-41
But the Lord said unto him, ye pharisees clean the outside of the cup and of the platter, 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 under the power of any:
1 Corinthians 8:7
But there is not in all men this knowledge: and some with a consciousness of the idol unto this day, eat it as a thing sacrificed to an idol, and so their conscience being weak is defiled.
1 Corinthians 10:23
If all things be lawful for me, yet all things are not expedient: all things may be lawful for me, but all things do not edify.
1 Corinthians 10:25
Eat then whatever is sold in the shambles, asking no questions for conscience sake:
1 Corinthians 10:31
Whether therefore ye eat, or drink, or whatsoever ye do, do all to the glory of God.
1 Corinthians 11:27-29
So that whosoever eateth this bread, or drinketh of the cup of the Lord unworthily, shall be guilty of profaning the body and blood of the Lord.
1 Timothy 4:3-4
and enjoining abstinence from meats, which God hath created to be received with thanksgiving by those that believe and know the truth.
1 Timothy 6:5
and void of truth, accounting gain to be godliness: from such withdraw thyself.
Hebrews 9:14
how much more shall the blood of Christ, who through the eternal Spirit offered himself spotless to God, purify your conscience from dead works, that ye may serve the living God?
Hebrews 10:22
let us draw near with sincerity, in the full assurance of faith, having our hearts cleansed from an evil conscience, and our bodies washed with pure water.