Adam Clarke on Psalms 76:8

Thou didst cause judgment to be heard - When God declared by his prophet that the enemy should not prevail, but on the contrary be destroyed, the earth the land, and by metonymy the inhabitants of the land, were struck with astonishment and terror, so as not to be able to move. The great boaster Sennacherib, who carried terror, dismay and desolation every where, was now struck with dumb amazement; and the angel of the Almighty, in a moment, stopped the breath of those hosts in which he confided.