Leviticus

Speak unto the children of Israel, saying, He that offereth the sacrifice of his peace offerings unto the Lord shall bring his oblation unto the Lord of the sacrifice of his peace offerings.

For the wave breast and the heave shoulder have I taken of the children of Israel from off the sacrifices of their peace offerings, and have given them unto Aaron the priest and unto his sons by a statute for ever from among the children of Israel.

And he shall offer thereof his offering, even an offering made by fire unto the Lord; the fat that covereth the inwards, and all the fat that is upon the inwards,

It shall be a perpetual statute for your generations throughout all your dwellings, that ye eat neither fat nor blood.