“At that very moment, the prayers of both were heard in the glorious presence of God. Raphael was sent to heal both of them. He helped Tobit by removing the white films from his eyes, so that he might see God’s light with his eyes. He helped Sarah, the daughter of Raguel, by giving her in marriage to Tobias the son of Tobit. He set her free from the wicked demon Asmodeus. Tobias was entitled to have her before all others who had desired to marry her. At the same time that Tobit returned from the courtyard into his house, Sarah daughter of Raguel came down from her upper room.”
God heard both the prayers of Tobit and Sarah. What a coincidence, since they were both praying at the same time. Now Raphael enters without any introduction. He is not explicitly mentioned as an angel. He simply is a messenger from God, which is what an angel is. He will appear to heal both of them. The plot of the story is now revealed. He will cure Tobit of his blindness and get a husband from Sarah, who will be the son of Tobit, Tobias. Thus, the story of the grave digger and the woman haunted with an evil spirit will join together. Meanwhile, they both returned from their individual prayers.