2:17 These men are waterless springs and mists driven by a storm, for whom the utter depths of darkness have been reserved. 18 For by speaking high-sounding but empty words they are able to entice, with fleshly desires and with debauchery, people who have just escaped from those who reside in error. 19 Although these false teachers promise such people freedom, they themselves are enslaved to immorality. For whatever a person succumbs to, to that he is enslaved. 20 For if after they have escaped the filthy things of the world through the rich knowledge of our Lord and Savior Jesus Christ, they again get entangled in them and succumb to them, their last state has become worse for them than their first. 21 For it would have been better for them never to have known the way of righteousness than, having known it, to turn back from the holy commandment that had been delivered to them. 22 They are illustrations of this true proverb: “A dog returns to its own vomit,” and “A sow, after washing herself, wallows in the mire.”

The Scriptures quoted are from the NET Bible® copyright © 1996, 2019, used with permission from Biblical Studies Press, L.L.C. All rights reserved.