The Wisdom of Ben Sira, (or The Wisdom of Yeshua Ben Sira or merely Sirach), called Ecclesiasticus by Christians, is a book written circa 180–175 BCE. The author, Yeshua ben Sira, was a Jew who had been living in Jerusalem, who may in fact have established his school and written his work in Alexandria (Guillaume). His work was written in Hebrew, nevertheless, and translated into Greek ...
The author is called in the Greek text (l. 27) "Jesus the son of Sirach of Jerusalem." The copy owned by Saadia Gaon had the reading "Shim`on, son of Yeshua`, son of El`azar ben Sira"; and a similar reading occurs in the Hebrew manuscript B. By interchanging the positions of the names "Shim`on" and "Yeshua`," the same reading is obtained as in the other manuscripts. The correctness of the name "Shim`on" is confirmed by the Syriac version, which has "Yeshua`, son of Shim`on, surnamed Bar Asira." The discrepancy between the two readings "Bar A ...