2 John 1:7-13 NCV

7 Many false teachers are in the world now who do not confess that Jesus Christ came to earth as a human. Anyone who does not confess this is a false teacher and an enemy of Christ.
8 Be careful yourselves that you do not lose everything you have worked for, but that you receive your full reward.
9 Anyone who goes beyond Christ's teaching and does not continue to follow only his teaching does not have God. But whoever continues to follow the teaching of Christ has both the Father and the Son.
10 If someone comes to you and does not bring this teaching, do not welcome or accept that person into your house.
11 If you welcome such a person, you share in the evil work.
12 I have many things to write to you, but I do not want to use paper and ink. Instead, I hope to come to you and talk face to face so we can be full of joy.
13 The children of your chosen sistern greet you.