2 John 1:7-13 ASV

7 For many deceivers are gone forth into the world, [even] they that confess not that Jesus Christ cometh in the flesh. This is the deceiver and the antichrist.
8 Look to yourselves, that ye lose not the things which we have wrought, but that ye receive a full reward.
9 Whosoever goeth onward and abideth not in the teaching of Christ, hath not God: he that abideth in the teaching, the same hath both the Father and the Son.
10 If any one cometh unto you, and bringeth not this teaching, receive him not into [your] house, and give him no greeting:
11 for he that giveth him greeting partaketh in his evil works.
12 Having many things to write unto you, I would not [write them] with paper and ink: but I hope to come unto you, and to speak face to face, that your joy may be made full.
13 The children of thine elect sister salute thee.