In the book of Jude, false teachers are described as relying on their dreams instead of the Bible for their teaching and activity. False teachers also please their flesh, reject authority, and are disrespectful. Christians should be aware of false teachers they may allow in their mind through online platforms.
The book of Jude is a letter from the half-brother of Jesus to the early church. Jude initially wanted to write about their common salvation but instead urges them to contend for the faith against ungodly people who have snuck into the church and perverted the grace of God. These false teachers deny Jesus and are predestined to punishment. Jude warns the church to not follow them.