Leviticus 7:24

And the fat of such animals as have died of themselves, or have been seized of beasts, may be employed for any work; but it shall not be eaten for food.

For I have taken the wave-breast and shoulder of separation from the children of Israel from the sacrifices of your peace-offerings, and I have given them to Aaron the priest and his sons, a perpetual ordinance [due] from the children of Israel.

The fat of that which dies of itself, and the fat of that which is torn of animals, may be used for any other service, but you shall in no way eat of it.