Charles Ellicott Commentary Romans 14:21

"It is good not to eat flesh, nor to drink wine, nor [to do anything] whereby thy brother stumbleth." — Romans 14:21 (ASV)

It is good neither to eat flesh.—These direct, clear, incisive sentences are as characteristic of the style of the Apostle (when he is dealing with moral questions of present urgency, and not with the abstract problems of theology) as the generous impulse which prompts them is of his heart.

Any thing—that is, to do anything; all three words have to be supplied.

Or is offended, or is made weak.—There is a remarkable division of authority for the omission or retention of these words, the Sinaitic and Alexandrine manuscripts with the Paris rescript being on one side, and the Vatican, with the Greco-Latin Codices, on the other; and the versions are nearly evenly divided. Here, internal evidence comes in and leads us to omit the words as most probably a gloss.