Tobit 6:15

15 It does not harm her, but it kills anyone who desires to approach her. So now, since I am the only son my father has, I am afraid that I may die and bring my father's and mother's life down to their grave, grieving for me—and they have no other son to bury them."

Tobit 6:15 In-Context

13 He continued, "You have every right to take her in marriage. So listen to me, brother; tonight I will speak to her father about the girl, so that we may take her to be your bride. When we return from Rages we will celebrate her marriage. For I know that Raguel can by no means keep her from you or promise her to another man without incurring the penalty of death according to the decree of the book of Moses. Indeed he knows that you, rather than any other man, are entitled to marry his daughter. So now listen to me, brother, and tonight we shall speak concerning the girl and arrange her engagement to you. And when we return from Rages we will take her and bring her back with us to your house."
14 Then Tobias said in answer to Raphael, "Brother Azariah, I have heard that she already has been married to seven husbands and that they died in the bridal chamber. On the night when they went in to her, they would die. I have heard people saying that it was a demon that killed them.
15 It does not harm her, but it kills anyone who desires to approach her. So now, since I am the only son my father has, I am afraid that I may die and bring my father's and mother's life down to their grave, grieving for me—and they have no other son to bury them."
16 But Raphael said to him, "Do you not remember your father's orders when he commanded you to take a wife from your father's house? Now listen to me, brother, and say no more about this demon. Take her. I know that this very night she will be given to you in marriage.
17 When you enter the bridal chamber, take some of the fish's liver and heart, and put them on the embers of the incense. An odor will be given off;
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.