Jude 1:5-16
Jude says that false teachers are the rebels we read about in Scripture. They’re going to be judged. And they’re dangerous to us.
That’s why Jude writes:
“Beloved, although I was very eager to write to you about our common salvation, I found it necessary to write appealing to you to contend for the faith that was once for all delivered to the saints.” (Jude 1:3)