There was a man named Tobit. He was the descendent of Asiel of the tribe of Naphtali. He was a holy, noble and just man, an Israelite, who lived in exile in Nineveh, in the land of the Assyrians. He had a wife, Anna and they had a son named Tobias.
One night, while Tobit was sleeping, sparrow droppings fell into his eyes. This produced white films which covered his eyes. He went to see the doctors, but they were not able to heal him and he became completely blind. He was blind for 4 years and his wife had to earn their living by doing women’s work.
Sarah, the daughter of Raquel. She had already been married off 7 times, but all 7 husbands had been killed by the demon Asmodeus before they had been with her. She was unclean.
Also on the same day, Tobit suddenly remembered that 22 years ago, he had left in trust some money with his friend Gabael at Rages in Media. Since he had prayed for death, he realised that it would be wise for him to tell about this to his son Tobias before he died. So he called his son and basically told Tobias to give him a proper burial
Tobias promised to do all as his father asked but he pointed out that he did not know Gabael and Gabael did not know him. So he went on a mission to collect the money in Media. He ended up taking Azariah on his Journey.
During there Journey they slept near the Tigris river. Tobias has heard of the fate of Sarah’s 7 husbands and he was worried that should he marry her and die, being an only son, his parents would also die and they had no one to bury them