2 John 1
The elder, to the chosen lady and her children, whom I love in truth; and not I only, but also all those who know the truth; 2for the truth's sake, which remains in us, and it will be with us forever: 3As-Salam-u Alaikum Wa Rahmat-Allah-i Wa Barakat-uh[1] from Allah the Father, and from the Lord 'Isa al-Masih, the Son of the Father, in truth and love.
4I rejoice greatly that I have found some of your children walking in truth, even as we have been commanded by the Father. 5Now I beg you, dear lady, not as though I wrote to you a new commandment, but that which we had from the beginning, that we love one another. 6This is love, that we should walk according to his commandments. This is the commandment, even as you heard from the beginning, that you should walk in it. 7For many deceivers have gone out into the world, those who do not confess that 'Isa al-Masih came in the flesh. This is the deceiver and dajjal. 8Watch yourselves, that we do not lose the things which we have accomplished, but that we receive a full reward. 9Whoever transgresses and does not remain in the teaching of al-Masih, does not have Allah. He who remains in the teaching, the same has both the Father and the Son. 10If anyone comes to you, and does not bring this teaching, do not receive him into your house, and do not welcome him, 11for he who welcomes him participates in his evil works.
12Having many things to write to you, I do not want to do so with paper and ink, but I hope to come to you, and to speak face to face, that our joy may be made full. 13The children of your chosen sister greet you. Amen.
[1] 1:3 Often translated, "grace, mercy and peace to you." This is functionally equivalent to the greeting given here.