2 John

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Anyone who is going beyond and is not remaining in the teaching of Christ does not have God. He remaining in the teaching: this one has both the Father and the Son. 

10  If someone comes to you and the teaching, this one, does not bring, do not receive him into home, even do not say to him to rejoice*.

11  He saying to him to rejoice* shares in the works of his, which are evil. 

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Notes

v. 10, 11  A standard greeting phrase among the early Christians. Possibly it can be translated, "to be gracious".