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The Book of Sirach (/ˈsaɪræk/) or Ecclesiasticus (/ɪˌkliːziˈæstɪkəs/; abbreviated Ecclus.), 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.