Job 34:25

“Therefore he knoweth their works, etc.] Being God omniscient, or rather takes notice of them, weighs and considers them, and gives to man according to them; or rather makes them known, for of his omniscience Elihu had spoken before; he makes them known to themselves, fastens convictions of their evil ways and works on their consciences, and obliges them to confess them, as the instances of Cain, Pharaoh, and others, show; and he makes them known to others by the judgment he executes, as on the old world, Sodom and Gomorrah; and the works of all will be made manifest at the day of judgment; and he overturneth [them] in the night; literally taken, as the firstborn of the Egyptians were slain…”

“Therefore--because He knows all things (Job 34:21). He knows their works, without a formal investigation (Job 34:24). in the night--suddenly, unexpectedly (Job 34:20). Fitly in the night, as it was in it that the godless hid themselves (Job 34:22). UMBREIT, less simply, for "overturneth," translates, "walketh"; that is, God is ever on the alert, discovering all wickedness.”

“Therefore he knoweth their works - Or, “Because he knoweth their works.” The word (לכן lākên) here rendered “therefore” is evidently used as denoting that since or because he was intimately acquainted with all which they did, he could justly bring vengeance upon them without long investigation. And he overturneth them in the night - literally, “he turneth night;” meaning, probably, he turns night upon them; that is, he brings calamity upon them. The word “night” is often used to denote calamity, or ruin. Umbreit understands it in the sense of “turning about the night;” that is, that they had covered up their deeds as in the night, but that God “so turns the night about” as to bring them to…”

“he knoweth: Psa 33:15; Isa 66:18; Hos 7:2; Amo 8:7; Rev 20:12 in the: Job 34:20; Sol 3:8; Isa 15:1; Th1 5:2 destroyed: Heb. crushed Job 34:26”