If you're talking about TaNaCH, it was written by various prophets and kings. According to Jewish tradition, God was also a coauthor.
writer of old testment & times
Basically, that's right.
See link:
old testment
No one does. The original language of the Old Testament was both Hebrew and Arahmaic. The Book of Daniel was written in Babylon.
Elohim
Joshua is an Old Testment patriarch, the brother of Moses. Old Testement personages are usually not referred to as saints. However, Joshua was probably born in Egypt during the captivity of the Jewish people
the old testament and the new testment
Hosea
The assistant to Elisha was gehazai
66 books
The old testment is an unfinished story because God did not yet fulllfiled his promise to his people