Chosen lady: this is the way John greets the community of an unknown city. The Church is chosen and holy, just as the people in it are the chosen and holy ones of God.
John invites the people to have a steadfast and emphatic attitude toward those who do not accept the faith of the apostles. At the same time he reminds them of the fundamental law for Christians: love.
To remain zealously faithful to the Truth is to love Christ who entrusted this truth to us. We need the whole truth and not only what is most pleasing to people today.
1I, the elder, to the chosen Lady and her children, whom I love sincerely—and with me all who know the truth—2because of this same truth which is and will be in us forever.
3Grace, mercy and peace be with you in the name of God the Father and of his Son, Christ Jesus, in truth and love.
4I rejoiced greatly on meeting some of your children who live in accordance with the truth, according to the command we have received from the Father. 5And now, I ask you, Lady—I write to you not a new commandment but that which we had from the beginning—I ask you: let us love one another.
6This is love: to walk according to his commandments. And this is the commandment: that you walk in love as you have learned from the beginning.
7Many deceivers have gone out into the world, people who do not acknowledge that Jesus is the Christ who came in the flesh. They are impostors and antichrists. 8Take care of yourselves that you do not lose the fruit of your labors, but receive a perfect reward. 9Everyone who goes beyond and does not remain within the teaching of Christ does not have God. The one who remains in the teaching has both the Father and the Son. 10If anyone comes to you and does not bring this teaching, do not receive him into your houses or even greet him. 11Even in greeting him you would become an accomplice in his wicked deeds.
12I have many things to write to you, but I prefer not to use paper and ink. I hope to meet you and speak to you personally, that our joy may be full.
13The children of your chosen sister greet you.