IV. Some particular sins specified, which they were notoriously guilty of, and which cried most loudly to heaven for vengeance. Their transgressions indeed were many, of many kinds and often repeated, and their backslidings were increased; they added to the number of them and grew more and more impudent in them, v. 6. But two sins especially were justly to be looked upon as unpardonable crimes:—1. Their spiritual whoredom, giving that honour to idols which is due to God only. "Thy children have forsaken me, to whom they were born and dedicated and under whom they have been brought up, and they have sworn by those that are no gods, have made their appeal to them as if they had been omniscient and their proper judges." This is here put for all acts of religious worship due to God only, but with which they had honoured their idols. They have sworn to them (so it may be read), have joined themselves to them and covenanted with them. Those that forsake God make a bad change for those that are no gods. 2. Their corporal whoredom. Because they had forsaken God and served idols, he gave them up to vile affections; and those that dishonoured him were left to dishonour themselves and their own families. They committed adultery most scandalously, without sense of shame or fear of punishment, for they assembled themselves by troops in the harlots' houses and did not blush to be seen by one another in the most scandalous places. So impudent and violent was their lust, so impatient of check, and so eager to be gratified, that they became perfect beasts (v. 8); like high-fed horses, they neighed every one after his neighbour's wife, v. 8. Unbridled lusts make men like natural brute beasts, such monstrous odious things are they. And that which aggravated their sin was that it was the abuse of God's favours to them: When they were fed to the full, then their lusts grew thus furious. Fulness of bread was fuel to the fire of Sodom's lusts. Sine Cerere et Bacchio friget Venu—Luxurious living feeds the flames of lust. Fasting would help to tame the unruly evil that is so full of deadly poison, and bring the body into subjection.