Look to yourselves, that we lose not those things which we have wrought, but that we receive a full reward.(2 John 1:8)

Whosoever transgresseth, and abideth not in the doctrine of Christ, hath not God. He that abideth in the doctrine of Christ, he hath both the Father and the Son.(2 John 1:9)

If there come any unto you, and bring not this doctrine, receive him not into your house, neither bid him God speed:(2 John 1:10)

For he that biddeth him God speed is partaker of his evil deeds.

Having many things to write unto you, I would not write with paper and ink: but I trust to come unto you, and speak face to face, that our joy may be full.(2 John 1:12)

The children of thy elect sister greet thee. Amen.(2 John 1:13)

The elder unto the wellbeloved Gaius, whom I love in the truth.(3 John 1:1)

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2 John 1:11 - Cross Reference

And have no fellowship with the unfruitful works of darkness, but rather reprove them. (Ephesians 5:11)

When thou sawest a thief, then thou consentedst with him, and hast been partaker with adulterers. (Psalm 50:18)

And I heard another voice from heaven, saying, Come out of her, my people, that ye be not partakers of her sins, and that ye receive not of her plagues. (Revelation 18:4)

Lay hands suddenly on no man, neither be partaker of other men's sins: keep thyself pure. (1 Timothy 5:22)