John Chrysostom — as excerpted in the Catena Aurea on Matthew 5:20-22

“Or, the judgment and the council denote punishment in this word; hell-fire future punishment. He denounces punishment against anger, yet does not mention any special punishment, shewing therein that it is not possible that a man should be altogether free from the passion. The Council here means the Jewish senate, for He would not seem to be always superseding all their established institutions, and introducing foreignf.”