4 How happy I was to find that some of your children live in the truth, just as the Father commanded us.
5 And so I ask you, dear Lady: let us all love one another. This is no new command I am writing to you; it is the command which we have had from the beginning.
6 This love I speak of means that we must live in obedience to God's commands. The command, as you have all heard from the beginning, is that you must all live in love.
7 Many deceivers have gone out all over the world, people who do not acknowledge that Jesus Christ came as a human being. Such a person is a deceiver and the Enemy of Christ.
8 Be on your guard, then, so that you will not lose what we have worked for, but will receive your reward in full.
9 Anyone who does not stay with the teaching of Christ, but goes beyond it, does not have God. Whoever does stay with the teaching has both the Father and the Son.
10 So then, if someone comes to you who does not bring this teaching, do not welcome him or her in your homes; do not even say, “Peace be with you.”