Galatians 1:7-8

7But really, there is no other message from God which is good news. Some people are confusing you. They are trying to change the good news about Christ and make it something different.

8Nobody should ever teach a message that is different from the good news that we taught you. Neither we ourselves, nor even an angel from heaven, should ever teach a different message. If anyone does that, I pray that God would curse him.