2 Peter 2:20-22

MKJV(i) 20 For if they have escaped the pollutions of the world through the full knowledge of the Lord and Savior Jesus Christ, and are again entangled, they have been overcome by these, their last things are worse than the first. 21 For it would have been better for them not to have fully known the way of righteousness, than fully knowing it, to turn from the holy commandment delivered to them. 22 But the word of the true proverb has happened to them: The dog turning to his own vomit; and, The washed sow to wallowing in the mire.