The Book of Job, or simply Job, is a book found in the Ketuvim ("Writings") section of the Hebrew Bible (Tanakh) and the first of the Poetic Books in the Old Testament of the Christian Bible. Scholars generally agree that it was written between the 7th and 3rd centuries BCE. It addresses theodicy through the experiences of the eponymous protagonist. Job is a wealthy and God-fearing man with a comfortable life and a large family. God asks Satan for his opinion of Job's piety. When Satan states that Job would turn away from God if he were rendered penniless, without his family, and materially uncomfortable, God allows him to do so. The rest of the book deals with Job successfully defending himself against his unsympathetic friends, whom God admonishes, and God's sovereignty over nature.

The Hebrew Bible or Tanakh, also known in Hebrew as Miqra, is the canonical collection of Hebrew scriptures, comprising the Torah, the Nevi'im, and the Ketuvim. Different branches of Judaism and Samaritanism have maintained different versions of the canon, including the 3rd-century BCE Septuagint text used in Second Temple Judaism, the Syriac Peshitta, the Samaritan Pentateuch, the Dead Sea Scrolls, and most recently the 10th-century medieval Masoretic Text compiled by the Masoretes, currently used in Rabbinic Judaism. The terms "Hebrew Bible" or "Hebrew Canon" are frequently confused with the Masoretic Text; however, this is a medieval version and one of several texts considered authoritative by different types of Judaism throughout history. The current edition of the Masoretic Text is mostly in Biblical Hebrew, with a few passages in Biblical Aramaic.