4, 9); " Them that love her the Lord doth love " (Ecclesiasticus iv.
The wisdom of Jesus ben Sira (Sirach) is contained in the book commonly called Ecclesiasticus.
The apology for the necessary defects of a translation put forward by the translator of Ecclesiasticus in his Prologue shows that the work was carried on beyond the limits of the Law.
By about the beginning of our era the Jews had given up Hebrew and wrote in Aramaic; the process of expulsion had been going on, doubtless, for some time; but comparison with the later extant literature (Chronicles, the Hebrew Ecclesiasticus or Ben-Sira, Esther) makes it improbable that such Hebrew as that of Koheleth would have been written earlier than the 2nd century B.C. (for details see Driver's Introduction).
So also the coincidences of thought with Ben-Sira (Ecclesiasticus) are not decisive: cf.