^7-8 For the world is becoming full of impostors—men who will not admit that Jesus the Christ really became man. Now this is the very spirit of deceit and is anti-Christ. Take care of yourselves; don’t throw away all the labour that has been spent on you, but persevere till God gives you your reward.

Have nothing to do with false teachers

^9-11 The man who is so “advanced” that he is not content with what Christ taught. has in fact no God. The man who bases his life on Christ’s teaching, however, has both the Father and the Son as his God. If any teacher comes to you who is disloyal to what Christ taught, don’t have him inside your house. Don’t even wish him “God-speed”, unless you want to share in the evil that he is doing.