The Apostle Paul
Romans 14:20ESV·traditional attribution

Do not, for the sake of food, destroy the work of God. Everything is indeed clean, but it is wrong for anyone to make another stumble by what he eats.

John Calvin Reformed @genevareformer

20. All things are indeed pure, etc. By saying, that all things are pure, he makes a general declaration; and by adding, that it is evil for man to eat with offense, he makes an exception; as though he had said, — “Meat is indeed good, but to give offense is bad.” Now meat has been given to us, that we may eat it, provided...

Matthew Henry Presbyterian @wholebiblehenry

We have in this chapter, I. An account of the unhappy contention which had broken out in the Christian church. Our Master had foretold that offences would come; and, it seems, so they did, for want of that wisdom and love which would have prevented discord, and kept up union among them. 1.

Commenting on Romans 14:1-23

John Gill Reformed Baptist @doctorgill

It is good neither to eat flesh,.... Any sort of flesh, even that which is not forbidden in the law, rather than offend a weak brother; and the apostle determines for himself, that he would not, where there was any danger of doing this, Co1 8:13.