Psalms 52:2 - Coke's Commentary on the Holy Bible

Thy tongue deviseth mischief— I do not very well understand, says Dr. Chandler, the propriety of the tongue's devising mischief, and devising it like a sharp razor; but we may easily avoid this harsh comparison, which Mr. Le Clerc justly complains of, by rendering the words, Thou contrivest mischiefs with thy tongue, as with a sharp razor, O thou dealer in deceit! i.e. "Thou contrivest, with thy smooth and flattering tongue, to wound the reputation and character of others; as though thou wert cutting their throats with a smooth or sharp razor." Or, much to the same sense, Thou contrivest wickedness: thy tongue is like a sharp razor: thou dealest in deceit; or, O thou deceitful doer! The construction will bear either of these senses: the comparing a smooth, deceitful, murderous tongue to a sharp razor, is natural and lively. Chandler.