Those with a focus on self are to be avoided, as Paul wrote, and here we see what they seek to do.
6 For among them are those who creep into households and capture weak women, burdened with sins and led astray by various passions, 7 always learning and never able to arrive at a knowledge of the truth. 8 Just as Jannes and Jambres opposed Moses, so these men also oppose the truth, men corrupted in mind and disqualified regarding the faith. 9 But they will not get very far, for their folly will be plain to all, as was that of those two men.
Paul writes that they creep into households and capture weak women, burdened with sins and led astray by various passions. What is going on here is that the false teaching, self-centred, difficult people seek to influence the households of those they come across with a constant stream of new and exciting looking teachings (v.7), but these never actually hit the mark. We read that these false teachings never arrive at a knowledge of the truth, because new always seeks new, emotionalism always seeks greater feelings, and passionate self-centred teachers always seek more of themselves.
The spirit of the last days (v.1) was present in Jannes and Jambres (Exodus 7, 8) and it is very much present in our modern world. We don’t need to look very far to see those teaching things that don’t honour God, magnify the Lord Jesus, and align with the mission of the Holy Spirit. Our unshakeable hope, however, comes when we read that they will not get very far, for their folly will be plain to all, as was that of [Jannes and Jambres].
The spirit of the last days well and truly meets its match in the person and work of Jesus, and that is where we must look to combat these ear-tickling but not Scripture-expositing teachings. Things may look wild and wonderful, may sound amazing and passionate, but never forget that miracles can be done by those posing as angels of light (2 Corinthians 11.15).
Believer, never forget though that He who is in you is greater than He who is in the world (1 John 4.4), and this is the standard against which we must judge the words of those who wander. Through His Word, His Son, and His Holy Spirit, God has equipped you to battle with and overcome this spirit of the last days.
We read that the people 2 Timothy 3.1-8 will not get very far, but by following Jesus over all, you will.