Jude 1:3-4

3My friends, I wanted very much to write to you about how God has saved us from sin. That is what he has done for you and for us. But instead of that, I now know that I must write to you about something else. I must tell you to be strong and brave. You must do everything that you can to keep God's true message safe. God has given this message to his special people and his message will never change. Do not let anyone teach you a different message.

4I say this because certain bad people have secretly come among you. They have turned away from God. They are trying to change God's true message. They teach that we can do any evil things that we want to do. They say that God will be kind and he will forgive us for all those things. They do not accept the authority of Jesus Christ, who is our only Master and our Lord. God will certainly punish those wicked people. A long time ago God said that he would punish people like them.