The tactic used by heresy is to claim to believe in Jesus but to follow something other than Jesus - to follow a person like the cult leader, culture or knowledge of the world, or a certain teaching.
Also, they are debauchery. They slander the Bible by living their lives according to their own desires and ambitions without being restrained. The clever part is that they say they believe in Jesus and the Bible and slanders the church and the Bible.
The more these people are in the church, the more the church gets slandered by the world. Because they do not have the image of faithful believers - have form but no content. So, they make it hard for people inside and outside the church.
You need to know the difference between faithful believers and heresy – the faithful do not lie and do not take advantage for their own sakes. However, heresy lies according to the circumstances and in the end takes its to their own advantage. Although they pretend to be noble on the outside, the inside is full of filthy greed.
Just remember - God condemned them long ago, and their destruction will not be delayed.
Excerpt from Pastor Lee’s sermon on Oct 31, 2022.
Peter 2:1-3