Tobit 6:4

4 "Cut the fish open," the angel instructed, "and take out its gall bladder, heart, and liver. Keep these with you; they can be used for medicine, but throw away the guts."

Tobit 6:4 In-Context

2 Tobias had gone down to wash his feet in the river, when suddenly a huge fish jumped up out of the water and tried to swallow one of his feet. Tobias let out a yell,
3 and the angel called to him, "Grab that fish! Don't let it get away." Then Tobias grabbed the fish and dragged it up on the bank.
4 "Cut the fish open," the angel instructed, "and take out its gall bladder, heart, and liver. Keep these with you; they can be used for medicine, but throw away the guts."
5 Tobias did as the angel had told him. Then he cooked the fish, ate part of it, and salted the rest to take along with him. The two continued on together until they were near Media.
6 Then Tobias asked, "Azarias, my friend, what diseases can be cured by this gall bladder, heart, and liver?"
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.