 The earliest "Tractatus" version in Hebrew was translated by Shemariah and presented as his own work, titled "Sefer ha-Hihhayon".His reputation was such that he was called to the court of King Robert of Naples (who acted as his patron), where he devoted himself chiefly to Biblical studies and wrote commentaries on Scripture.By 1328 he had completed philosophic commentaries on the Pentateuch (especially the story of the Creation), the Book of Job, and the Song of Songs.