II. The sins of Jerusalem are here complained of as the procuring provoking cause of all these calamities. Whoever are the instruments, God is the author of all these troubles; it is the Lord that has afflicted her (v. 5) and he has done it as a righteous Judge, for she has sinned. 1. Her sins are for number numberless. Are her troubles many? Her sins are many more. it is for the multitude of her transgressions that the Lord has afflicted her. See Jer. xxx. 14. When the transgressions of a people are multiplied we cannot say, as Job does in his own case, that wounds are multiplied without cause, Job ix. 17. 2. They are for nature exceedingly heinous (v. 8): Jerusalem has grievously sinned, has sinned sin (so the word is), sinned wilfully, deliberately, has sinned that sin which of all others is the abominable things that the Lord hates, the sin of idolatry. The sins of Jerusalem, that makes such a profession and enjoys such privileges, are of all others the most grievous sins. She has sinned grievously (v. 8), and therefore (v. 9) she came down wonderfully. Note, Grievous sins bring wondrous ruin; there are some workers of iniquity to whom there is a strange punishment, Job xxxi. 3. They are such sins as may plainly be read in the punishment. (1.) They have been very oppressive and therefore are justly oppressed (v. 3): Judah has gone into captivity, and it is because of affliction and great servitude, because the rich among them afflicted the poor and made them serve with rigour, and particularly (as the Chaldee paraphrases it) because they had oppressed their Hebrew servants, which is charged upon them, Jer. xxxiv. 11. Oppression was one of their crying sins (Jer. vi. 6, 7) and it is a sin that cries aloud. (2.) They have made themselves vile, and therefore are justly vilified. They all despise her (v. 8), for her filthiness is in her skirts; it appears upon her garments that she has rolled them in the mire of sin. None could stain our glory if we did not stain it ourselves. (3.) They have been very secure and therefore are justly surprised with this ruin (v. 9): She remembers not her last end; she did not take the warning that was given her to consider her latter end, to consider what would be the end of such wicked courses as she took, and therefore she came down wonderfully, in an astonishing manner, that she might be made to feel what she would not fear; therefore God shall make their plagues wonderful.