John Gill Commentary Psalms 73:19

"How are they become a desolation in a moment! They are utterly consumed with terrors." — Psalms 73:19 (ASV)

How are they brought into desolation, as in a moment ?
&c.] Very suddenly, which is often the case of wicked men, who cry Peace and safety, and sudden destruction comes upon them, (1 Thessalonians 5:3) , so as in a moment was the punishment of Sodom and Gomorrah, of Pharaoh and his host, and of Korah and his company, (Lamentations 4:6) (Exodus 14:28) (Numbers 16:21Numbers 16:45) , the words are expressed with admiration, as wondering at the sudden and amazing turn of things:

they are utterly consumed with terrors :
&c.] their destruction is not only sudden, but entire; it is like the breaking in pieces of a potter's vessel; a shard of which cannot be gathered up and used, or like the casting of a millstone into the sea, which will never rise more; such will be the destruction of antichrist; see (Revelation 2:27) (18:21) and this is done "with terrors"; either by terrible judgments inflicted on them from without; or with terrors inwardly seizing upon their minds and consciences; as, at the time of temporal calamities, or at death, however at judgment, when the awful sentence will be pronounced upon them; see (Job 27:20) .