The Book of Sirach is a Jewish work, originally in Hebrew, of ethical teachings, from approximately 200 to 175 BC, written by the Judahite scribe Ben Sira of Jerusalem, on the inspiration of his father Joshua son of Sirach, sometimes called Jesus son of Sirach or Yeshua ben Eliezer ben Sira. In Egypt, it was translated into Greek by the author's unnamed grandson, who added a prologue. This prologue is generally considered the earliest witness to a canon of the books of the prophets, and thus the date of the text is the subject of intense scrutiny. The book itself is the largest wisdom book from antiquity to have survived.-Wiki