Psalms 59:11 - Joseph Benson’s Commentary on the Old and New Testaments

Slay them not Hebrew, אל תהרגם, al tahargeem, Thou wilt not slay them, namely, suddenly, or at once; lest my people My countrymen, those over whom thou hast appointed me to be governor in due time; forget Their former danger, thy glorious mercy in delivering them, and their own duty to thee for it. Hereby it plainly appears that David, in his prayers against, and predictions concerning his enemies, was not moved by private malice or desire of revenge, but by the respect which he had to God's honour, and the general good of his people. Scatter them by thy power הניעמו, hanigneemo, Make them to wander. As they have wandered about the city and country to do me mischief, so let their punishment be agreeable to their sin; let them wander from place to place for meat, (as it is expressed Psalms 59:15,) that they may carry the tokens of thy justice, and their own shame, to all places where they come. And bring them down From that power and dignity in which thou hadst set them, which they so wickedly abused; and from the height of their carnal hopes of success against me.