Romans 14
14 Ref 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.
15 Ref And if because of food your brother is troubled, then you are no longer going on in the way of love. Do not let your food be destruction to him for whom Christ went into death.
16 Ref Let it not be possible for men to say evil about your good:
17 Ref For the kingdom of God is not food and drink, but righteousness and peace and joy in the Holy Spirit.
18 Ref And he who in these things is Christ's servant, is pleasing to God and has the approval of men.