Conversation so far:
in what three languages was the bible originally written
Scholars generally recognize three languages as original biblical languages: Hebrew, Aramaic, and Koine Greek.
what is the hebrew bible called
The Hebrew Bible is also known as the Tanakh
how many books does the tanakh have
The Tanakh consists of 39 books.

Question: which parts are written in greek
Self-contained rewrite: which parts of the bible are written in greek