Destroy thou them, O God; rather, condemn them, or declare them guilty (Kay); κρῖνον αὐτούς (LXX.). Let them fall by their own counsels. No condemnation naturally follows punishment. David assumes that God will make his enemies fall; he prays that they may fall from the effect of their own counsels.
The fate of Ahithophel (2 Samuel 17:23) perhaps fulfilled this imprecation. Cast them out in the multitude of their transgressions; Thrust them out (Revised Version); "Thrust them down" (Kay). Punish them at once, in the midst of their many transgressions.
For they have rebelled against thee. They have sinned, not against me only, but equally—nay, far more—against thee.