8 Look to yourselves, so that we may not lose those things which we worked out, but that we may receive a full reward.

9 Everyone transgressing and not abiding in the doctrine of Christ does not have God. He who abides in the doctrine of Christ, he has both the Father and the Son.

10 If anyone comes to you and does not bring this doctrine, do not receive him into [your] house, nor speak a greeting to him.