I rejoice exceedingly because I have found some of thy children walking about in truth, as we received commandment from the Father.

And this is the divine love, that we may walk about according to his commandments; this is the commandment, That, as you heard from the beginning, that you may walk about in it.

Anyone who does not remain in Christ’s teaching but goes beyond it, does not have God. The one who remains in that teaching, this one has both the Father and the Son.

If anyone comes to you [i.e., to your meetings] who does not bring this teaching [about Christ], you should not welcome him into your home or give him [any] greetings [i.e., suggesting approval or endorsement].

I have many [more] things to write to you about, but will not do so with paper and ink, since I hope to visit you [soon] and speak to you in person, so that our joy may be complete.