Tobit 6:5

5 So the young man did as the angel told him; and they roasted and ate the fish. And they both continued on their way until they came near to Ecbatana.

Tobit 6:5 In-Context

3 and the angel said to him, "Catch the fish." So the young man seized the fish and threw it up on the land.

4 Then the angel said to him, "Cut open the fish and take the heart and liver and gall and put them away safely."

5 So the young man did as the angel told him; and they roasted and ate the fish. And they both continued on their way until they came near to Ecbatana.

6 Then the young man said to the angel, "Brother Azarias, of what use is the liver and heart and gall of the fish?"

7 He replied, "As for the heart and liver, if a demon or evil spirit gives trouble to any one, you make a smoke from these before the man or woman, and that person will never be troubled again.