Psalms 31:18 - Matthew Poole's English Annotations on the Holy Bible

Lying lips; slanderous tongues. Be put to silence, either by thy vindication and discovery of my integrity; or by some eminent judgment, which may either convince them, or cut them off. Grievous things, Heb. hard words, or things, the singular number being put for the plural. Of this expression, see 1 Samuel 2:3 Psalms 60:3, Psalms 94:4 Jude 15. He means such as were grievous, and hard to be borne, as bitter calumnies, cruel mockings, terrible threatenings, and the like. Proudly and contemptuously; with great arrogancy, and confidence of success, and contempt of me and mine, whom they look upon as few in number, and impotent and fugitives, and such whom they can blow away with a breath. Against the righteous; against us, whom thou knowest to be righteous, notwithstanding all their false accusations; and therefore for thy love to righteousness save us, and silence our unjust enemies.