Matthew Poole and continuators on Psalms 21:11

11. For they intended evil against thee : they imagined a mischievous device, which they are not able to perform .

(i. e.) Against God, not directly but by Consequence, because it was against David, whom God had anointed, and against the Lords people, whose injuries God takes as done to himself, Zech. 2. 8.

Such Supplements are usual after this Verb, as Exod. 8. 18. Psal. 101. 5. an[illegible: 1+ letters] 139. 6. Isa. 1. 13. Or, for which they were unable or insufficient. Or, but they did not prevail, as this Verb signifies, Psal. 13. 4. and 129. 2. This Glause seems to be added to teach us this great and necessary Lesson, that men are justly punished by God for their wicked Intentions, although they be hindred from the Execution of them, contrary to what some Jewish Doctors, and others have taught.