5 Dear friend, I am not writing to tell you and your children to do something you have not done before. I am writing to tell you to love each other, which is the first thing you were told to do.
6 Love means that we do what God tells us. And from the beginning, he told you to love him.
7 Many liars have gone out into the world. These deceitful liars are saying that Jesus Christ did not have a truly human body. But they are liars and the enemies of Christ.
8 So be sure not to lose what we have worked for. If you do, you won't be given your full reward.
9 Don't keep changing what you were taught about Christ, or else God will no longer be with you. But if you hold firmly to what you were taught, both the Father and the Son will be with you.
10 If people won't agree to this teaching, don't welcome them into your home or even greet them.
11 Greeting them is the same as taking part in their evil deeds.