2Pet 2:18

“For when they speak great swelling words of vanity,.... Marvellous things against the God of gods, great things and blasphemies against God, his name, his tabernacle, and his saints; see Dan 11:36; or against men, dominions, and dignities, Pe2 2:10; or it may design their self-applauses and vain glorying in themselves, and their empty boast of knowledge and learning; and also express the windiness of their doctrines, and the bombast style, and high flown strains of rhetoric in which they were delivered; as likewise the flattering titles they bestowed on men for the sake of their own worldly interest and advantage; see Jde 1:16 and hereby they allure, through the lusts of the flesh, through much wantonness, those that were clean escaped from them who live in error: that is, from those who lived in the error of Heathenism or Judaism, from whom, and which, they were clean escaped; or truly, really, and entirely delivered, being fully convinced of the falsity thereof, and of the truth of the Christian religion; though some copies, as the Alexandrian, and two of Beza's, and two of Stephens's, read, not "truly", but "a little"; and the Vulgate Latin version renders it, "a very little"; to which agrees the Complutensian edition; and the Syriac version renders it "in a few words", or "almost"; and according to the Ethiopic version, "a few persons" are designed; but be they more or less, and truly, or but a little, and for a little while, or almost, escaped from their former errors, in which they were brought up, and lived; yet by the carnal lusts and liberties, lasciviousness and wantonness, which these false teachers indulged, they were allured, ensnared, and drawn by them into their wicked principles and practices.”

“They speak great swelling words of vanity - The word ὑπερογκα signifies things of great magnitude, grand, superb, sublime; it sometimes signifies inflated, tumid, bombastic. These false teachers spoke of great and high things, and no doubt promised their disciples the greatest privileges, as they themselves pretended to a high degree of illumination; but they were all false and vain, though they tickled the fancy and excited the desires of the flesh; and indeed this appears to have been their object. And hence some think that the impure sect of the Nicolaitans is meant. See the preface. Those that were clean escaped - Those who, through hearing the doctrines of the Gospel, had been converted, were perverted by those false teachers.”

“allure--Greek, "lay baits for." through--Greek, "in"; the lusts of the flesh being the element IN which they lay their baits. much wantonness--Greek, "by licentiousness"; the bait which they lay. clean escaped--Greek, "really escaped." But the oldest manuscripts and Vulgate read, "scarcely," or "for but a little time"; scarcely have they escaped from them who live in error (the ungodly world), when they are allured by these seducers into sin again (Pe2 2:20).”