Charles H. Spurgeon on Psalms 36:12

There are the workers of iniquity fallen. This is said as if the psalmist pointed, when he said it, to a particular place with his finger; and the same mode of expression occurs in Ps 14:5; or, it may be rendered, then (i.e., when the just are satisfied with the plenteousness of thy house, being rewarded for sincerely worshipping thee in it), shall they fall, all that work wickedness; they shall be cast down, and shall not be able to rise, as is the case with persons who have been thrown with violence upon the hard ground. Daniel Cresswell.