2 Timothy 3:5-9

3:5 They will maintain the outward appearance of religion but will have repudiated its power. So avoid people like these. 3:6 For some of these insinuate themselves into households and captivate weak women who are overwhelmed with sins and led along by various passions. 3:7 Such women are always seeking instruction, yet never able to arrive at a knowledge of the truth. 3:8 And just as Jannes and Jambres opposed Moses, so these people – who have warped minds and are disqualified in the faith – also oppose the truth. 3:9 But they will not go much further, for their foolishness will be obvious to everyone, just like it was with Jannes and Jambres.

2 Timothy 3:13

3:13 But evil people and charlatans will go from bad to worse, deceiving others and being deceived themselves.