2 John 1:7-9

7Many people who deceive others have gone into the world. They refuse to declare that Jesus Christ came in flesh and blood. This is the mark of a deceiver and an antichrist.

8Be careful that you don’t destroy what we’ve worked for, but that you receive your full reward.

9Everyone who doesn’t continue to teach what Christ taught doesn’t have God. The person who continues to teach what Christ taught has both the Father and the Son.