Genesis, Exodus, Leviticus, Numbers, Deuteronomy —Moses (scholarly opinions differ here, but so far no thoroughly convincing arguments have been advanced to disprove the Mosaic authorship of large portions of these books); Joshua—Joshua (also ascribed to Phineas, Eleazar, Samuel and Jeremiah); Judges— ascribed by Jewish tradition to Samuel; Ruth—unknown; I and II Samuel—unknown (probably the work of Samuel, Nathan and others) ; I and II Kings —unknown; I and II Chronicles—probably Ezra; Ezra—probably Ezra; Nehemiah—Nehemiah; Esther —probably Mordecai, or Ezra; Job—uncertain (has been attributed to Moses, or Job); the Psalms—David, Moses, and others; Proverbs—Solomon and others; Ecclesiastes—formerly ascribed to Solomon, now thought by many to belong to a later period; Song of Solomon—Solomon; Isaiah—Isaiah; Jeremiah—Jeremiah ; Lamentations—Jeremiah; the remaining books of the Old Testament were written by the prophets whose names they bear, with the probable exception
of Jonah; Matthew—Matthew; Mark—Mark; Luke— Luke; John—John; Acts—Luke; Romans to Philemon—Paul; Hebrews—unknown (has been ascribed to Paul, Luke, Apollos, Barnabas); James—James; I and II Peter—Peter; I, II and III John—John; Revelation—John.