2 John 1:6-9

6This is love, that we walk according to His commandments. This is the commandment, that as you have heard from the beginning, you should walk in it.

7For many deceivers have gone out into the world who do not confess Jesus Christ as coming in the flesh. This is a deceiver and an antichrist.

8Look to yourselves, that we do not lose those things we worked for, but that we may receive a full reward.

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.