2 Corinthians 13

Read this chapter.  Very good one.  I like verse 5:  "Examine yourselves to make sure you are in the faith; test yourselves.  Do you acknowledge that Jesus Christ is really in you?  (Or, as in the book of Romans states it - "Do you acknowledge Jesus Christ as Lord?"  My own insert here).  If not, you have failed the test." 

And the conclusion of the letter:  Verses 11-13:
"In the meantime, brothers and sisters, we wish you happiness; try to grow perfect; help one another.  Be united; live in peace, and the God of love and peace will be with you.
   Greet one another with the holy kiss. 
   The grace of the Lord Jesus Christ, the love of God and the fellowship of the Holy Spirit be with you all."