‘Do not overthrow for meat's sake the work of God. All things indeed are clean, however it is evil for that man who eats with offence. It is good not to eat flesh, nor to drink wine, nor (anything) in which your brother stumbles.'
In contrast to the building up of one another up by our loving concern for one another, is the possibility of throwing down the work of God (destroying the weak believer), and doing it simply over arguments about meat. For while all things are indeed ritually clean, they are nevertheless unclean to the one who believes them to be so (Romans 14:14), and thus to such a person partaking of them would be evil. It would be to sin against conscience. And as a result they would stumble. As Christians we should therefore be concerned to so live that we do not cause others to stumble.
Alternately by the one who commits evil by eating Paul may have in mind the strong believer, when as a result of it he causes offence (a means of stumbling) to weaker believers. The context may be seen as indicating that this is the more likely meaning. This thus results in the situation whereby the eating becomes an evil for such a person, not because it is wrong in itself, but because it demonstrates his lack of regard for others.
So the guiding principle to the Christian must be that he should not partake of things in the presence of ‘weaker brethren', which would cause such a brother or sister to stumble. The ‘drinking of wine', first drawn attention to in Romans 14:17, may well refer to abstention from wine on the basis that its source might be ritually unclean. This would again underline that Jewish concerns are in mind. But it may equally well have in mind that excess of wine drags men down (Ephesians 5:18; compare Proverbs 20:1).
The abstention from wine in the presence of others is a good principle to observe when we think of how, especially in this present generation, so many young people are dragged down by drink. If our example causes others to go astray we will not be able to defend ourselves by claiming ‘it was not our fault', for we should have known perfectly well what our example could lead to. In days when much water in towns was impure (Ephesus was noted for the vileness of its water which caused many stomach problems), the drinking of mild wines was a necessity (1 Timothy 5:23), and it is questionable how far the forbidding of ‘wine and strong drink' (Proverbs 20:1; Proverbs 31:4; Isaiah 5:11; Isaiah 28:7; note also Leviticus 10:9; Numbers 6:3; Judges 13:4; etc.) was intended to exclude mild wines. But it not a question of nicety of argument. The point at issue is that we should abstain from all which, as a consequence of our example, might lead to the downfall of others.