The words of his mouth are wicked and deceitful; he has ceased to be wise and well-doing.
Psalm 36 Almost all interpreters agree in supposing, that in this psalm David in general expresses his wonder and amazement at the goodness of God, because, in the exercise of his favor and mercy, he bears with the wicked, who, notwithstanding, basely contemn him. The opinion which I have formed is somewhat different.
Commenting on Psalm 36:1-12
The words of his mouth are iniquity and deceit. This pair of hell dogs generally hunt together, and what one does not catch the other will; if iniquity cannot win by oppression, deceit will gain by chicanery. When the heart is so corrupt as to flatter itself, the tongue follows suit. The open sepulchre of the throat reveals the foulness of the inner nature.
David, in the title of this psalm, is styled the servant of the Lord; why in this, and not in any other, except in Ps. 18 (title), no reason can be given; but so he was, not only as every good man is God's servant, but as a king, as a prophet, as one employed in serving the interests of God's kingdom among men more...
Commenting on Psalm 36:1-4