2 John New English Translation (NET Bible)
Introduction and Thanksgiving
1 From[a] the elder,[b] to an elect lady[c] and her children, whom I love in truth[d] (and not I alone, but also all those[e] who know the truth), 2 because of the truth[f] that resides in us and will be with us forever. 3 Grace, mercy, and[g] peace will be with us from God the Father and from[h] Jesus Christ the Son of the Father, in truth and love.
Warning Against False Teachers
5 But now[l] I ask you, lady (not as if I were[m] writing a new commandment[n] to you, but the one[o] we have had from the beginning),[p] that[q] we love one another. 6 (Now this is love: that we walk[r] according to his commandments.) This is the commandment, just as you have heard from the beginning; thus[s] you should walk in it.[t] 7 For[u] many deceivers have gone out into the world, people who do not confess Jesus as[v] Christ[w] coming in the flesh.[x] This person is the deceiver and the antichrist![y] 8 Watch out, so that you do not lose the things we have worked for,[z] but receive a full reward.[aa]
9 Everyone[ab] who goes on ahead and does not remain[ac] in the teaching of Christ[ad] does not have God.[ae] The one who remains in this teaching 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 any greeting,[af] 11 because the person who gives him a greeting shares in his evil deeds.[ag]
13 The children of your elect sister greet you.[al]
2 John New International Version (NIV)
1 The elder,
To the lady chosen by God and to her children, whom I love in the truth—and not I only, but also all who know the truth— 2 because of the truth, which lives in us and will be with us forever:
3 Grace, mercy and peace from God the Father and from Jesus Christ, the Father’s Son, will be with us in truth and love.
4 It has given me great joy to find some of your children walking in the truth, just as the Father commanded us. 5 And now, dear lady, I am not writing you a new command but one we have had from the beginning. I ask that we love one another. 6 And this is love: that we walk in obedience to his commands. As you have heard from the beginning, his command is that you walk in love.
7 I say this because many deceivers, who do not acknowledge Jesus Christ as coming in the flesh, have gone out into the world. Any such person is the deceiver and the antichrist. 8 Watch out that you do not lose what we[a] have worked for, but that you may be rewarded fully. 9 Anyone who runs ahead and does not continue in the teaching of Christ does not have God; whoever continues in the teaching has both the Father and the Son. 10 If anyone comes to you and does not bring this teaching, do not take them into your house or welcome them. 11 Anyone who welcomes them shares in their wicked work.
12 I have much to write to you, but I do not want to use paper and ink. Instead, I hope to visit you and talk with you face to face, so that our joy may be complete.
13 The children of your sister, who is chosen by God, send their greetings.