Are spoiled of all that glory and advantage which they either had already gotten, or further expected, from the success of their present expedition, which they promised to themselves. They became a prey to those upon whom they hoped to prey. Their sleep; even a perpetual sleep, as Jeremiah 51:39,57, or the sleep of death, Psalms 13:3; called their sleep emphatically, as being peculiar to them and such-like men, and not that sleep which is common to the good and bad. Their death he seems to call sleep, because they were slain in the night, when they had composed themselves to rest and sleep, and so passed insensibly from one sleep to another. For it is thought by many that this Psalm was composed upon the occasion of that prodigious slaughter of the Assyrians in Judah, 2 Kings 19:35. None have found their hands; they had no more strength in or use of their hands against the destroying angel, than they who have no hands.
Related Commentaries of Psalms 76:5
Psalms 76:5
5 The stouthearted are spoiled, they have slept their sleep: and none of the men of might have found their hands.