The Book of Tobit () is a 3rd or early 2nd century BCE Jewish work describing how God tests the faithful, responds to prayers, and protects the covenant community (i.e., the Israelites). It tells the story of two Jewish families, that of the blind Tobit in Nineveh and of the abandoned Sara in Ecbatana. Tobit's son Tobias is sent to retrieve ten silver talents that Tobit once left in Rages, a town in Media; guided and aided by the angel Raphael he arrives in Ecbatana, where he meets Sarah. A demon named Asmodeus has fallen in love with her and kills anyone she intends to marry, but with the aid of Raphael the demon is exorcised and Tobias and Sarah marry, after which they return to Nineveh where Tobit is cured of his blindness.