Saint Raphael was sent by God to help Tobit, Tobiah and Sarah.  At the time, Tobit was blind and Tobiah's betrothed, Sarah, had had seven bridegrooms perish on the night of their weddings.  Saint Raphael accompanied Tobiah into Media disguised as a man named Azariah.  Saint Raphael helped him through his difficulties and taught him how to safely enter marriage with Sarah.  Tobiah said that Saint Raphael caused him to have his wife and that he gave joy to Sarah's parents for driving out the evil spirit in her.  He also gave Saint Raphael credit for his father's seeing the light of Heaven and for receiving all good things through his intercession. 

Besides Saint Raphael, Saint Michael and Saint Gabriel are the only Archangels mentioned by name in the Bible.  Saint Raphael's name means "God heals."  This identity came about because of the Biblical story which claims that he "healed" the Earth when it was defiled by the sins of the fallen angels in the apocryphal book of Enoch.  Saint Raphael is also identified as the angel who moved the waters of the healing sheep pool.  Saint Raphael is also the patron of the blind, of happy meetings, of nurses, of physicians and of travelers.  He is also assigned to protect family life. 

He reveals his identity: "I am the angel, Raphael, one of the seven who stand before the throne of God."