 Apart from the extreme example of the Marcionites, isolated disagreements over certain books' canonicity continued for centuries.Athanasius, a fourth-century bishop of Alexandria, omitted Esther from his list, potentially having been influenced by an early 22-book Jewish canon, possibly the one mentioned but not specified by Josephus.Theodore of Mopsuestia omitted Song of Songs, Ecclesiastes, Job, and Ezra–Nehemiah to obtain a listing of 22 books.