Pelagius — on Rom 14:4 (PELAGIUS'S COMMENTARY ON ROMANS)

“What authority do you have to judge someone whom the law does not judge? This is why James says: "He who judges his brother judges the Law"; in other words, he judges himself to be wiser than the law. Nevertheless, Paul himself judged those who broke the commandments and gave others the power to judge. A man either lives or dies according to his own master.”