Neither repented they of their murders - Their cruelties towards the genuine followers of God, the Albigenses, and Waldenses, and others, against whom they published crusades, and hunted them down, and butchered them in the most shocking manner. The innumerable murders by the horrible inquisition need not be mentioned.
Their sorceries - Those who apply this also to the Romish Church understand by it the various tricks, sleights of hand, or legerdemain, by which they impose on the common people in causing images of Christ to bleed, and the various pretended miracles wrought at the tombs, etc., of pretended saints, holy wells, and such like.
Fornication - Giving that honor to various creatures which is due only to the Creator.
Their thefts - Their exactions and impositions on men for indulgences, pardons, etc. These things may be intended, but it is going too far to say that this is the true interpretation. And yet to express any doubt on this subject is with some little else than heresy. If such men can see these things so clearly in such obscure prophecies, let them be thankful for their sight, and indulgent to those who still sit in darkness.

Neither repented they of their murders,.... Of the saints and martyrs of Jesus, with whose blood the western antichrist is made drunk, and which will be found in her, and for which she is answerable. Now, though the western parts of the empire escaped the scourge of the Turks, yet this did not bring them to repent of their murderous practices, but they went on to take away the lives of godly men; witness the persecutions of the Waldenses and Albigenses, the murders of John Huss and Jerom of Prague, the burning of the martyrs here in Queen Mary's days, and the massacres in Paris and in Ireland, and their butcheries elsewhere; and which they have continued unto this day, where the Inquisition obtains:
nor of their sorceries; Jezebel the whore of Rome has been famous for, by which she has deceived all nations; many of the popes of Rome have been necromancers, given to the magic art, and have entered into covenant, and have had familiarity with the devil; and one part of the Romish service lies in exorcisms, conjurations, and enchantments, and which they still continue:
nor of their fornication; all sorts of uncleanness; not only simple fornication, but adultery, incest, sodomy, and all unnatural lusts; brothel houses have been set up and licensed by authority, which have yielded to the popes a yearly revenue of forty thousand ducats; the Romish clergy, popes, cardinals, priests, monks, and friars, have been dreadfully guilty of all manner of uncleanness, and still are; whence Rome is called Sodom, Revelation 11:8;
nor of their thefts; who under pretence of granting indulgences and pardons, and praying souls out of purgatory, with other tricks, cheat men of their money, pillage and plunder their estates, and devour widows' houses; rob men of their substance, and make merchandise of their souls: now all these iniquities the Papists in the eastern empire were guilty of, for which the Turks as a scourge were let in upon it, and destroyed it; and yet the western papacy, who did not suffer in these calamities, took no warning by them, did not repent of their sins, and reform their practices; but went on, and still go on in the same wicked way, and by their hardness and impenitence treasure up wrath against the day of wrath.

sorceries--witchcrafts by means of drugs (so the Greek). One of the fruits of the unrenewed flesh: the sin of the heathen: about to be repeated by apostate Christians in the last days, Revelation 22:15, "sorcerers." The heathen who shall have rejected the proffered Gospel and clung to their fleshly lusts, and apostate Christians who shall have relapsed into the same shall share the same terrible judgments. The worship of images was established in the East in A.D. 842.
fornication--singular: whereas the other sins are in the plural. Other sins are perpetrated at intervals: those lacking purity of heart indulge in one perpetual fornication [BENGEL].