2. Corporal whoredom is another crime here charged upon them: They have committed whoredom continually, v. 18. They drove a trade of uncleanness; it was not a single act now and then, but their constant practice, as it is of many that have eyes full of adultery and which cannot cease from that sin, 2 Pet. ii. 14. Now the abominable filthiness and lewdness that was found in Israel is here spoken of, (1.) As a concomitant of their idolatry; their false gods drew them to it; for the devil whom they worshipped, though a spirit, is an unclean spirit. Those that worshipped idols were separated with harlots, and they sacrificed with harlots; for because they liked not to retain God in their knowledge, but dishonoured him, therefore God gave them up to vile affections, by the indulging of which they dishonoured themselves, Rom. i. 24, 28. (2.) As a punishment of it. The men that worshipped idols were separated with harlots that attended the idolatrous rites, as in the worship of Baal-peor, Num. xxv. 1, 2. To punish them for that God gave up their wives and daughters to the like vile affections: They committed whoredom and adultery (v. 13), which could not but be a great grief and reproach to their husbands and parents; for those that are not chaste themselves desire to have their wives and daughters so. But thus they might read their sin in their punishment, as David's adultery was punished in the debauching of his concubines by his own son, 2 Sam. xii. 11. Note, When the same sin in others is made men's grief and affliction which they have themselves been guilty of they must own that the Lord is righteous.