Barnabas, Letter of. Article #21. Vol 1, pg 903.
The Letter of Barnabas is an early church document, written in Greek. Despite its name, scholars believe that it was written by some early church writer in the 1st or 2nd century, rather than by the apostle Barnabas.
The letter didn’t make it into the New Testament, perhaps because the author was a little rough on the Jews. He argued that the Jews had misinterpreted much of the Old Testament and that it should really just be used as an introduction to the story of the Christians in the New Testament anyway.
The author also did the Jews a favor by reinterpreting portions of the Old Testament. One example–where the Old Testament says “don’t eat weasel”, what it really means is “don’t engage in oral sex”. I.e. “My children, I entreat you, don’t eat the weasel”!
“Barnabus, Letter of.” Encyclopedia Britannica. 15th ed. 2010. Vol 1, pg 903.