Romans 14:21

It is good not to eat flesh, nor to drink wine, nor to do anything whereby thy brother stumbleth. [Do not for a trifling indulgence destroy a man, the noblest work and likeness of God. Look not at your act alone, but consider also its consequences. True, indeed, that your weak brother, in following your example, will not be harmed by the food itself, yet he will surely do evil if he offends his conscience in eating. Therefore your proper course is abstinence that your brother may not be tempted. Though Paul's reference is to the contamination of the wine of idolatry, yet the principle applies equally well to the wine of intemperance.]