A Disaster Averted: Romans 14:5-6

I start by quoting the entire relevant passage in Romans, not just the selected verses in the title. It is vital to see the whole thing in
context, the big picture:
As for the one who is weak in faith, welcome him, but not to quarrel over opinions. One person believes he may eat anything, while the weak person eats only vegetables. Let not the one who eats despise the one who abstains, and let not the one who abstains pass judgment on the one who eats, for God has welcomed him. Who are you to pass judgment on the servant of another? It is before his own master that he stands or falls. And he will be upheld, for the Lord is able to make him stand.