Psalms 36:12
Ver. 12. There are the workers, of iniquity fallen,.... Either in the pit they dug for others; or into hell, where they shall be turned at last; See Gill on "Ps 5:5" and See Gill on "Ps 6:8";
they are cast down, and shall not be able to rise; which will be the case of Babylon when fallen, Re 18:21, and this distinguishes the falls of the wicked from those of the righteous; for though the righteous fall, whether into sin, or into any calamity, they rise again; not so the wicked; see Ps 37:24; and thus, as the psalm begins with the transgression of the wicked, it ends with their ruin.
John Gill's Exposition of the Entire Bible.