The scholar who analyzed the Ben Sira scroll added portions to a book of the Bible  written by the author on the inspiration of who?
Sirach: The Book of the All-Virtuous Wisdom of Joshua ben Sira, commonly called the Wisdom of Sirach or simply Sirach, and also known as the Book of Ecclesiasticus (abbreviated Ecclus.) Sirach:  or Ben Sira, is a work of ethical teachings, from approximately 200 to 175 BCE, written by the Jewish 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.
i don't know