Romans 14
3 Ref Let not him who takes food have a low opinion of him who does not: and let not him who does not take food be a judge of him who does; for he has God's approval.
4 Ref Who are you to make yourself a judge of another man's servant? it is to his master that he is responsible for good or bad. Yes, his place will be safe, because the Lord is able to keep him from falling.