5 Now I ask you, lady, not as though I were writing to you a new commandment, but the one which we have had from the beginning, that we love one another. 6 And this is love, that we walk according to His commandments. This is the commandment, just as you have heard from the beginning, that you should walk in it.
7 For many deceivers have gone out into the world, those who do not acknowledge Jesus Christ as coming in the flesh. This is the deceiver and the antichrist. 8 Watch yourselves, that you do not lose what we have accomplished, but that you may receive a full reward. 9 Anyone who goes too far and does not abide in the teaching of Christ, does not have God; the one who abides in the teaching, he has both the Father and the Son. 10 If anyone comes to you and does not bring this teaching, do not receive him into your house, and do not give him a greeting; 11 for the one who gives him a greeting participates in his evil deeds.