William Burkitt on Romans 14:20

That is, for meat destroy not thou the work of God. Do not thou, for so inconsiderable a matter as eating is, endanger the Christianity of thy brother, or hazard the peace of the church, and cause any through scandal to fall off from their Christian profession. If any of you say, that all meats are clean, and therefore lawful; in answer, they are certainly so in themselves, but yet it is your sin if you use them to the scandal and offence of others, that are not satisfied in the lawfulness of them." It is most certianly the duty of Christians to deny themselves the use of their Christian liberty in some things, when by making use of it they may endanger any of their brethren, by causing them to fall from their own stedfastness.