Sirach , by Ben Sira , which is also known as Wisdom of Jesus son of Sirach , the Wisdom of Ben Sira , or Ecclesiasticus , is a work from the early second century BC , its original version being written in Hebrew . Sirach , by the Jewish scribe Ben Sira of Jerusalem , also known as Wisdom of Jesus son of Sirach , the Wisdom of Ben Sira , or Ecclesiasticus , is a work from the early 2nd century BC .