You sit and speak against your brother; you slander your own mother’s son.
PSALM 50 There have always been hypocrites in the Church, men who have placed religion in a mere observance of outward ceremonies, and among the Jews there were many who turned their attention entirely to the figures of the Law, without regarding the truth which was represented under them. They conceived that nothing more was demanded of them but their sacrifices and other rites.
Commenting on Psalm 50:1-23
Here the Lord turns to the manifestly wicked among his people; and such there were even in the highest places of his sanctuary. If moral formalists had been rebuked, how much more these immoral pretenders to fellowship with heaven? If the lack of heart spoiled the worship of the more decent and virtuous, how much more would violations of the law, committed with a high...
Commenting on Psalm 50:16
Thou sittest and speakest against thy brother. He sits down to it, makes it his meat, studies it, resolves upon it, becomes a master of defamation, occupies the chair of calumny. His nearest friend is not safe, his dearest relative escapes not. Thou slanderest thine own mother's son. He ought to love him best, but he has an ill word for him.