False Teachers
5 So I want to remind you, though you already know these things, that Jesus first rescued the nation of Israel from Egypt, but later he destroyed those who did not remain faithful. 6 And I remind you of the angels who did not stay within the limits of authority God gave them but left the place where they belonged. God has kept them securely chained in prisons of darkness, waiting for the great day of judgment. 7 And don’t forget Sodom and Gomorrah and their neighboring towns, which were filled with immorality and every kind of sexual perversion. Those cities were destroyed by fire and serve as a warning of the eternal fire of God’s judgment. 8 In the same way, these people—who claim authority from their dreams—live immoral lives, defy authority, and scoff at supernatural beings. 9 But even Michael, one of the mightiest of the angels, did not dare accuse the devil of blasphemy, but simply said, “The Lord rebuke you!” (This took place when Michael was arguing with the devil about Moses’ body.) 10 But these people scoff at things they do not understand. Like unthinking animals, they do whatever their instincts tell them, and so they bring about their own destruction. 11 What sorrow awaits them! For they follow in the footsteps of Cain, who killed his brother. Like Balaam, they deceive people for money. And like Korah, they perish in their rebellion.
Jude 1:5-11 NLT
This section of scripture is about false teachers. One of their characteristics is that they deceive people for money; but God makes it clear that they won't get away with it in the end. Meanwhile we ought to remain faithful to the Lord:
"17 But you, my dear friends, must remember what the apostles of our Lord Jesus Christ predicted. 18 They told you that in the last times there would be scoffers whose purpose in life is to satisfy their ungodly desires. 19 These people are the ones who are creating divisions among you. They follow their natural instincts because they do not have God’s Spirit in them.
20 But you, dear friends, must build each other up in your most holy faith, pray in the power of the Holy Spirit, 21 and await the mercy of our Lord Jesus Christ, who will bring you eternal life. In this way, you will keep yourselves safe in God’s love.
22 And you must show mercy to those whose faith is wavering. 23 Rescue others by snatching them from the flames of judgment. Show mercy to still others, but do so with great caution, hating the sins that contaminate their lives" (Jude 17-23 NLT).