Cross reference
Titus 1:15
15 To the clean in heart all things are clean: but to those who are unclean and without faith nothing is clean; they become unclean in mind and in thought.
Romans 14:20
20 Do not let the work of God come to nothing on account of food. All things are certainly clean; but it is evil for that man who by taking food makes it hard for another.
Romans 14:14
14 I am conscious of this, and am certain in the Lord Jesus, that nothing is unclean in itself; but for the man in whose opinion it is unclean, for him it is unclean.
1 Timothy 4:3-4
3 Who keep men from being married and from taking food which God made to be taken with praise by those who have faith and true knowledge.
4 Because everything which God has made is good, and nothing is evil, if it is taken with praise:
1 Corinthians 10:23
23 We are free to do all things, but there are things which it is not wise to do. We are free to do all things, but not all things are for the common good.
Romans 14:23
23 But he who is in doubt is judged if he takes food, because he does it not in faith; and whatever is not of faith is sin.
1 Corinthians 6:12-13
12 I am free to do all things; but not all things are wise. I am free to do all things; but I will not let myself come under the power of any.
13 Food is for the stomach and the stomach for food, and God will put an end to them together. But the body is not for the desires of the flesh, but for the Lord; and the Lord for the body:
1 Corinthians 10:31
31 So then, if it is a question of food or drink, or any other thing, whatever you do, do all to the glory of God.
1 Corinthians 10:25
25 Whatever meat may be had at the public market, take as food without question of right or wrong;
1 Corinthians 8:7
7 Still, all men have not that knowledge: but some, being used till now to the image, are conscious that they are taking food which has been offered to the image; and because they are not strong in the faith, their minds are troubled.
Luke 11:39-41
39 And the Lord said to him, You Pharisees make the outside of the cup and the plate clean; but inside you are thieves and full of evil.
40 O you foolish ones! did not he who made the outside in the same way make the inside?
41 But if you give to the poor such things as you are able, then all things are clean to you.
Acts 10:15
15 And the voice came to him a second time, What God has made clean, do not you make common.
Matthew 15:18
18 But the things which come out of the mouth come from the heart; and they make a man unclean.