2 John 1:9-12

9Whoever transgresses and does not abide in the doctrine of Christ does not have God. He who abides in the doctrine of Christ has both the Father and the Son.

10If anyone comes to you and does not bring this doctrine, do not receive him into your house nor greet him;

11for he who greets him shares in his evil deeds.

12Having many things to write to you, I did not wish to do so with paper and ink; but I hope to come to you and speak face to face, that our joy may be full.